TENET EXPLAINED: Time Inversion, Entropy and more! | Tenet (2020) | Film Analysis | TBFR

[@ramgopalvarma3810]

This video should be played at the end credits of the movie.

[@Connorthecatsdad]

Or before the movie starts

[@WeerdBeard]

@@Connorthecatsdad Or just a warning that the movie is impossibly obtuse and it's best to skip it.

[@dpatulea]

When the movie starts from the Neil's perspective as a Kat's kid? Truely

[@SunnyP14]

I watched 10 videos so far.. none provided required clarity.. this video is dope. This one deserves million views.

[@WrinkleRelease]

Was about to say the same thing. Only video so far to really put some thought into it and address some of the more complex issues, like the wall and bullets.

[@ErickLGonzalez]

I inverted myself to be the one who said this first, but it turns out my turnstile spinned me around full circle.

[@dododoodoodo5400]

I was thinking that as well. Best explanation so far. Smart,n pretty. Unbelievable lol

[@stevechance150]

If you like TENET you would enjoy the film "Primer". The amazing thing about Primer is it was made for $7,000. Oh, and yes, there are websites that attempts to fully explain Primer.

[@onetwu]

Exactly! How did this get 65 dislikes? So many haters on social media! 🙄

[@Mukation]

Sato decided to link the bomb with his death so that the world would die at the same time as himself. He was insane and narcissistic to the point that he could not accept that he would die and the rest of the world would move on and continue existing without himself in it.... Classic psychopath "If i can't have her, nobody will"

[@Fridaey13txhOktober]

Yeah but he would have to keep that plan to himself and successfully carry out the plan by himself. Nobody, not even his associates should be able to know. He might also have made mistakes in assessment and the world is only devastated, which kicks off the plot.

[@Mukation]

@@Fridaey13txhOktober He probably told his asosciates that he was just doing the job the future had asked him to do etc. Or you know, he didn't tell them anything, just gave them a shit load of money and that made them not ask any questions

[@Fridaey13txhOktober]

​@@Mukation Of course, some faction in the future might have searched for someone who would do such a thing and send em whatever is necessary. Of course, they could know the results of that well in advance. Or have the means to indoctrinate him into this mindset, his marriage would have failed but nobody would be wise on what actually happened.

[@Yarblocosifilitico]

Classic psychopath? Doesn't psychopath mean lack of empathy? Sure, he does seem to lack empathy, but honestly his motivations are quite childish imo, rather than pyschopathic. More like 'classic shallow comic book villain'.

[@vivekvasani22]

The movie has made reference to the fact that any written communication, either physically or digitally, could be intercepted and read in the future. Before the car chase mission, the Protagonist requested that no mention of the mission be recorded to prevent Sator from reading it in the future and inverting back to foil their plans, we find out later the he used a temporal pincer instead to do this. Sator’s ultimate plan is to collect all of the pieces of the algorithm and bury it for the Antagonists to use in the future to enact their plan of inverting the world. But Sator would need to tell them where to dig up the algorithm which he planned to do with a fitbit-like device that will trigger an email blast (that the Antagonists can read in the future) when Sator’s heart rate drops to 0. But this plot was foiled because the email was sent and the algorithm was removed from the time capsule that the email said it would be in.

[@JRussUT]

Sator wasn't out to destroy the world (directly); merely to ensure the Algorithm reached the future people. The Stalsk explosion was not to trigger the algorithm or some other apocolyptic event. Rather, he was merely burying the alogrithm (all the pieces the future people need) so they could dig it up. Remember, before the Stalsk assault, in his briefing, Ives said their job was to fail to prevent the explosion, so that future people think everything went to plan and they don't know the algorithm isn't there.

[@chrishdk]

Sators death is crucial bc his death sends out the location through email, which gets read by the future. it instantaneously destroy the past, but the temporal pincer at the end tricks the future for the location of the algorithm.

[@iloveyoualexterrell]

I’ve spent more hours than I’d like to admit “researching” this movie to better understand it. And this by far is the clearest video I’ve come across. Good job!

[@Waterbug1591]

this is by far the best explanation vid i've seen about the movie. every other explanation vid is literally just a description of the plot which explained nothing. good job michelle

[@TeaBreakFilmReviews]

Thank you! I am glad to be of service :)

[@hello2jello4mellow34]

I agree. Well done reviews and analysis on this channel.

[@andreymaruha1151]

Ty . Great vid.

[@thadude765]

Word! I kinda gave up

[@macdeep8523]

Selfless service by Ms.Michelle

[@leo.and.phineas]

Best review of Tenet yet. Don’t even bother watching any from Looper or those top video review channels, they aren’t even close to as good.

[@TRUMP_2024_PREZ]

@LOOPER IS CANCEROUS TOXIC GARBAGE #FACTS

[@01sevensix]

Agree. Very good summary of Tenet.

[@MeatMachine212]

Predestination is as good, maybe even better? It's a tough one but seriously check out Predestination, you will be glad you did

[@furqansiddiqui8129]

@@TRUMP_2024_PREZ facts man.. just releasing stuff that's popular is their motto

[@TRUMP_2024_PREZ]

@@furqansiddiqui8129 @LOOPER ARE PATHETIC MARVEL SHEEP 🐑

[@metalore]

The bullet dropping scene early in the movie mentions a concept that is not spoken of anymore during the rest of film: That merely acting like something already happened causes it to happen. This is key for fully understanding everything else. Every time inverted and non-inverted objects/people interact, the result is a combination of what each side acts like has happened ("side" meaning everything with the same entropy regardless of distance). For this reason, the grandfather paradox cannot occur, because trying to kill your younger self will be met with a greater resistance of acting like you did survive (your younger self acting plus a part of your current self acting like you live). This is a borderline supernatural explanation (not from me, from the movie) and is akin to the Force (from Star Wars). The big difference between this and Star Wars is, these characters aren't aware that they are using these "supernatural" powers in advance (the bullet dropping scene is the sole exception). Theoretically the belief in life after death (and resurrection) could solve the grandfather paradox and allow you to appear to die, but that gets into the power of religion and is a whole other can of worms (although it does begin to explain how the bad guys from the future justify their actions that will destroy the past).

[@TactileTherapy]

i believe she used the word instinct if i remember correctly

[@cedricsankara9809]

Is your channel a pillow? Because it's clearly being SLEPT on, damn. This is hands down the best Tenet Explained video i've come by yet.

[@mohammedaitlaarebi]

I'm I the only one who thinks she is the scientist who is going to came up with the machine's algorithm?

[@geymseksion]

I did too on my 2nd watch

[@quinnheller1113]

@@geymseksion I heard that too, it doesn’t make sense to me though because it says that scientist was born in several generations. The scientist we see isn’t an old woman at all

[@jackdillon5903]

I read this comment and actually thought it was referring to the KZbinr! 😆

[@georgglottis7024]

To me the interaction between inverted and noninverted things or persons seems to be the most difficult aspect of time inversion.

[@Koolafeer]

31 dislikes from people who're living in reverse. To them, the video moves backwards. Congratulations Michelle, you've made it to the other side of the turnstile.

[@vladtschill8774]

Because her point about the liver doesnt make since. That and neither does the watch. If it went through the machine, it would still be going forward, the clocks on the wall would be the ones going backward. She started off with two completely wrong points.

[@GamezGuru1]

@@vladtschill8774 yup, there are more errors in this video than the film itself! Her explanation of the inverted bullet is also wrong - the bullet does not travel back into the gun after protagoiist pulls the trigger. The trigger is 'unpulled' and momentarily before, the bullet reverses out of the wall and into the gun. I.e. it is the protagnist who shot the bullet into the wall. It's just like when he 'undrops' the bullet on the table. It's possible the gun must also be inverted for this to happen, but not sure... Also she completely missed the fact that the future generation is trying to invert the whole world - the destruction of the past is just a consequence of this, not the objective itself, so her theory of the population going back in time to an environment that's recovering is nonsense.

[@loisoh]

you smart girl, you have answered my questions. better than some stupid rambling videos out there. can you analyze the final battle scene? it seems i cannot follow what is going on for that 10 min-battle.

[@TeaBreakFilmReviews]

Hi Lois, I am glad I have answered your questions. In terms of in depth analyses of particular scenes, I won't be able to do those until the film comes out on dvd as I need to have the footage to be able to break down the shots in order to give the best explanation of what is happening. In the meantime, I will have a short explanation of how the Temporal Pincer Movement works in my timeline video, coming very soon!

[@tharunv6056]

@@TeaBreakFilmReviews will be waiting for that

[@privateperson8289]

Yes please! :)

[@Yarblocosifilitico]

@@TeaBreakFilmReviews I'd like to know why the protagonist tries to shoot himself in the head

[@ryandavis5285]

@@Yarblocosifilitico better ask Nolan himself

[@patrickr.1433]

2:00 maybe oxygen that gets breathed wasn't part of the materials in the turnstile whose entropy was being inverted. liver toxins and anything already in the body when the person uses the turnstile would stay being experienced as normal for the inverted person but anything not in the turnstile at the time of use would not

[@tmp1k]

However one video I watched mentioned how eye sight could not work in this inverted concept because of how eyes work based on the direction light travels and hits the eye. If light is moving backwards your eyes wouldn't work properly and you would not be able to see.

[@aakashvaanie]

@@tmp1k Have the same doubt. If any logical explanation found. Please do share.. Searching for one for a long time.

[@isfandyarsiddiqui8718]

Don’t. This is a science fiction. No matter how much you become successful in explaining things, it will still be a “fiction” and not explainable.

[@xlovleyx1543]

@@isfandyarsiddiqui8718 lol ok?

[@LLCobraCmndr]

O No girl, you don't have anything near the subscription count you deserve. Your videos are amazing. Keep it up.

[@samw917]

Super great video! On the point about bodily functions, my interpretation was that everything inverted with you works in the same direction, which includes your internal organs and fluids. The problem would be anything taken from the outside, in the movie it was mostly O2, but that raises the question of how Neil would've been able to go all the way back decades, he would need to bring enough not just O2, but food, water etc. Unless he was periodically inverting back to "resupply"

[@westmcgee9320]

Bingo.

[@YakAttack915]

Best description I've seen of this so far. Answered a lot of my questions. Bravo

[@shantoreywilkins651]

#loveit

[@iWubBass]

I have watch almost all of the Tenet videos being Uploaded to KZbin and yours are definitely the best. Awesome job keep up the good work, I love you. I have also never understood entropy until the explanation in your video.

[@TeaBreakFilmReviews]

Thank you so much! With entropy I am thankful for the video by Jeff Phillips I mention as that helped me understand how it works in normal time!

[@hello2jello4mellow34]

I do agree.

[@Fridaey13txhOktober]

@@TeaBreakFilmReviews ​ Here is an idea. The glass obviously wouldn't have been put there if it had formed bullet holes when it was first made, now would it? Even if there were strict orders to the manufacturer to disregard anything odd like this, paradoxing the timeline would still be waaay too easy. Member how inverted protagonist is starting to feel pain, then starts bleeding shortly before the incident? A normal wound would have been noticed earlier, at least several days, it's forming at an apparently accelerated rate. The bullet holes & remains starts "forming" shortly before the incident, this is where time inversion is lost (much like an ice cube losing its heat and this is why the scientist has those green glows when handling inverted objects) to the point it goes from negative to positive. Then they disappear during it as we see. Later however, non-reverted bullet holes & remains starts re-appearing in the glass, with the back of the bullet-appearing first and glass cracks last. Assuming the holes starts forming 11 minutes before the shot for example, it would then apparently start apparently re-forming 11 minutes after the shot and from the bullet hole perspective, it would be everything else jumping 22 minutes forward. It would also necessary for the plot, the machines to invert time would have had to, from the normal perspective, to "appear" seemingly out of nowhere to begin with some unseen machine specialized for just that purpose, as they do not seem to be capable to do that on their own.

[@Yarblocosifilitico]

did any of those videos explain why the protagonist tries to shoot himself in the head? Or is there no reason whatsoever other than the supposedly cool fighting scene?

[@serenitynow8689]

@@Yarblocosifilitico While struggling for control of the gun the future inverted protagonist misses on purpose to empty the gun of bullets so that non-inverted protagonist would not be able to shoot him

[@sidewaysfcs0718]

The bullet was originally shot into the wall by the Protagonist, but in inverted time. From the bullet's perspective the Protagonist shoots its normally into the wall, but he's just talking in reverse and thinking in reverse since his body is not inverted. Somewhere betweent he bullet and the protagonist's hands the forward/backward time logic breaks down. Watching the scene in reverse could shed some light, from the reverse perspective (inverted time) and wall is just standing there, the Protagonist goes to the table with the gun in hand, shoots bullet into the wall, then takes his hands off the gun, from this perspective it is the Protagonist that is inverted, the bullet-wall system behaves normally in this time frame. Causality (in the framework of the movie) is preserve since the bullet is shot out of the gun in inverted time, but paradoxially from the Protagonist's conscious perspective, the effect happens before the cause, since he's actually letting of the triggeer, feeling reverse recoil, then a bullet goes into the gun. I guess the complication here is that only the bullet is inverted, the Protagonist and the gun itself seem to not be, this is an artifact of the "effective range" of this inversion radiation effect, and it left somewhat unexplained just how "far" this applies, since clearly the bullet is (from P's perspective) in the wall, far away from P, but he can still catch it.

[@carterbutler45]

Right- the springs in the gun, the firing pin, etc., would also arguably need to be inverted. The bigger head trip is considering the nature of predetermination, or fate. He "causes" the action either way. This means that the action is essentially "written in time" for the bullet to find its way backwards along the pathway of time, back into the gun. Problematically, however, the inventor (or whoever inverts the bullet) in the future must have, while inverted himself, dug the bullet out of the concrete wall into which it was lodged and walked it into an inversion machine.

[@doctorpineapplefruit3459]

Carter Butler The problem with your last argument is this: The bullet is reversed, therefore it is not inside the wall in the future and it never „was“. From the Protagonit‘s perspective: They found a wall with inverted bullets and don‘t know how they got there. They take the wall to a secret lab and fire an empty gun at it. The bullets are moving out of the wall and back into the gun. Then the unfired bullet just exists together with the wall, which was never shot. At some point, the bullet is produced, from this point on, the bullet exists two times, one inverted and one normal. Both exist until the point where it got inverted, then both versions just disappear. From the bullets perspective: It is produced and just exists until it is inverted. Once it is inverted it just lays around until it gets put into the weapon and fired at a random wall. And it stays inside the wall. Then the wall is taken away from the secret lab and gets put at some random spot where it fits perfectly. It stays there forever... So there is no paradox. Noone dug it out of the wall, since it was placed there in reverse. Time is not linear in this movie and such a thing like free will doesn‘t exist since everything that happens needs to be pre-written in time to work. This is also pointed out by the last conversation between the Protagonist and Neil.

[@carterbutler45]

@@doctorpineapplefruit3459 you seem to be assuming that inversion, in the laws of this movie, isn't the same as reversion or backwards time. Turn it forward and see the logical progression. Ordinary bullet shot into wall. Wall sits still, as walls tend to do. How does the bullet achieve its inverted properties? Someone, i.e. the Scientist, digs it out, and causes it to be inverted. Practically speaking, C Nolan's premise isn't inversion. Invert a waveform and it turns upside down or flips to be opposite on the X axis. Reverse a waveform and, of course, it flips or goes the other way on the Y axis. Because we perceive Time as linear, the film is really about reversion. But inversion sounds cooler. As Dr. Emmit Brown might say if he were a real scientist, you're not thinking FOURTH dimensionally. Nolan's film correctly asserts there are no alternate realities. Time is a plane and is one with space and everything that happens therein, always happens and at each exact point.

[@carterbutler45]

@@doctorpineapplefruit3459 Remember the turnstiles. Think of these in parallel with the inverted bullet's "beginning" and "end" point of inversion (even though the bullet of course does not cease to be inverted once it goes back up into JD Washington's gun). Turnstile A in Estonia (correct location?) is one place where a thing can be inverted. Turnstile B in Oslo is another place, and also where a thing can be returned to normal time, as the turnstiles go both ways. Bullet is inverted at some point in the future. Bullet goes to the gun, could be removed and set back on a normal course of time. Between the two points, it exists at the Inversion point (call it Point A), a concrete wall, and the gun (Point B). Physically it had to move from inversion point to the wall before moving into the gun. See?

[@doctorpineapplefruit3459]

Carter Butler No matter if you call it reversing or inverting, since it‘s fictional anyway it doesn‘t matter. Following the movies own established laws of physics my explanation should be right. But could also be wrong, since the movie isn‘t easy 😂

[@tb45g]

I think the solution to the unshot bullets plothole (specifically, how do the bullet holes get there in the first place) has to do with anti-entropic "radiation" and Neil's description of inverted matter "swimming upstream" in a non-inverted environment. One theory I had is that anti-entropic radiation has a sort of half-life when inverted matter exists in a non-inverted environment. Eventually the inverted object's anti-entropy will flatline and reverse direction. When this happens, another instance of that object is created, which moves forward in time instead of backwards. Since the matter occupies the same space, it annihilates (or appears to, from one perspective). So the bulletholes (and bullet) created by the inverted shot just disappear after (or before) a certain point (from a non-inverted perspective, they spontaneously appear). Whether they appear or disappear just depends on the initial states of the object and environment. Think about what happens when you enter a turnstile to invert initially. From the perspective of everyone else who's not inverted, they just saw two people enter a turnstile and disappear completely. One backwards, one forwards. Likewise, when un-inverting, non-inverted people witness two people spontaneously exit an empty turnstile. However an inverted person would instead see two people entering the turnstile and disappearing. I think this makes the spontaneous appearance of bullet holes a plausible solution. I'm guessing that the turnstiles somehow mimic the natural process of entropy flat-lining, while separating the anti-entropic matter from the entropic matter, thereby creating a duplicate (not really a duplicate but technically the same matter is existing in two places at once, in different entropic states). The duplicate then either gets into a turnstile again with a non-inverted version of itself, or naturally annihilates over time as it's anti-entropy flatlines, thereby maintaining balance. Or something like that. The more I think about it the less it makes sense. Also, as far as the trigger pull causing the bullet to be caught, it makes sense only if the gun which shot the bullet is also inverted. The action of the springs in the slide and magazine would need to behave in the opposite way.

[@atleofte]

I really like your theory on anti-entropic "radiation" and half-life, the physics actually sort of makes sense. It would explain why nobody made an opera and carefully built a bullethole, put an inverted bullet there and then sprinkled some dust on the floor, ready to get sucked back and fill in the hole at some point in the future; it simply appeared at some time before Neil sucked it back into his gun. In Neil's reference frame, where time moves backwards, he shoots an inverted bullet into the concrete, at which point the bullet inverts the parts of the concrete that are within it's sphere of influence, giving it the same entropic half-life as the bullet. For Neil it looks like a normal gunshot, for normal people it looks like the wall rebuilt itself. If Neil where to stand there and watch he would at some point observe that the bullet's and concrete rubble's entropic momentum would slow down and reach zero, at wich point the bullet and rubble would annihilate itself, blinking out of existence. For normal people they would observe a bullethole and bullet suddenly appear. This would also explain why the Protagonist in his inverted travels starts bleeding from his arm before he is stabbed by himself: A chronological knife stabbs inverted flesh and re-inverts some flesh back to chronological flesh. As normal times progresses, the wound slowly looses (or gains?) entropic momentum until it annihilates itself and disappears. The Protagonist experiences this in reverse; a wound suddenly appears and stays with him untill he is stabbed. I always wondered how his bleeding fit into things, but this makes sense! I feel like this opens up new plot holes, but my brain can't take it right now.

[@Fridaey13txhOktober]

@@atleofte Yep. The wound was clearly opening up faster than normal, at an seemingly accelerated rate. Otherwise, it would have been noticed earlier. If the bullet holes on the window simply remained, the change would go all the way back to when the window was first made. Even if the manufacturers have strict instructions to ignore this, it would paradox the timeline waay too easily. First, at X1 time before the incident, you have inverted bullet holes seemingly appearing but this is actually the point where they fully _lose_ the time inversion. Then, they re-appear X1 time after being seemingly un-made but this time, they are non-inverted. From the hole's perspective, a nearby clock would show X2 time jump. This also solves the problem of the Turnstiles and remains from the future. They didn't go all the way back from when ever they were inverted in the future, they seemingly "appeared". The plot hole might be gravity, it would go the other way for any inverted individual or object.

[@InimicalWit]

10:25 I think the answer here is in what the woman explains a few moments later, when they’re pushing the bullet around on the table. She says to him “you have to have dropped it” - but she had to say that, because “dropping”the bullet is less intuitive than “pulling the trigger”. She told him to aim at the wall and pull the trigger - but the bullet hits the wall *after* he pulls the trigger, so in reversed entropy, the bullet comes out of the wall *before* he pulls the trigger. He fired the bullet, just like he dropped it. Loving this video, so far, tho - the points about bodily functions hadn’t occurred to me, among other things. Your language over the issues is what allowed me to explain this the way I understood it from the film 💙💙💙

[@carterbutler45]

For a watch to tick backwards, the person would have to enter the machine without a watch, step out of the machine into what is backward flowing time for him/her, pick up a watch and wait 30 minutes, then go back through the machine. His/her natural internal functions would continue to work normally so long as he/she had the oxygen mask from the inversion machine, as animals only need food and oxygen for our internal organs to do their jobs. In the same way that inverted organisms don't age in reverse, inverted organs don't function in reverse.

[@Caped___Crusader]

Well stated.

[@DogWick]

True i also think your body would have to turn carbon dioxide into oxygen since your literally breathing in reverse

[@DarionDAnjou]

@@DogWick your body processes are operating normally from your perspective, so you don't need CO2 to breathe, you need inverted Oxygen.i don't think CO2 is necessarily the same as Inverted Oxygen

[@DogWick]

@@DarionDAnjou i know but what i meant was that you in forward time you would convert that C02 into 02 but in backwards time you would be breathing in 02 and breathing out C02 But the movies logic makes it more interesting

[@DarionDAnjou]

@@DogWick i totally see and agree with that, especially from the perception of a normal forward moving person watching an inverted person what they would perceive is someone for whom CO2 enters the system and then Oxygen exits the system but from your own perspective as the Inverted person nothing is any different chemically except that you require Inverted Oxygen, NOT the forward catalyzing kind

[@lhoff8]

To answer your question about bodily functions, the reason the movie provides for being unable to breathe while inverted is that the air around you is backwards. Inversion favors your perspective, so while your body is functioning normally, the air you should be breathing is not. Therefore, when you invert, you need to bring a supply of oxygen that is also inverted, and will therefore behave normally relative to you. In your liver example, the liver would function normally, since your entire body is inverted. To an uninverted perspective your body would be poisoning itself, but from your perspective you’re perfectly fine.

[@williamc9578]

Actually, I think Sator decided to die by suicide and his heart monitor is a dead man's switch to trigger the explosion of the buried assembled algorithm he instructed his henchman to bury at his abandoned hometown. he chose this time because it was the final moment he remembers being at peace with Kat and possibly have his whole family with him. It is "bad-guy-ness" but it is his way of going out (and taking the world with him) at a time of his choosing (i.e. playing God).

[@vivekvasani22]

The dead man’s switch was to trigger an email send that the future villains, that employed Sator, can read to find where the algorithm was buried.

[@westmcgee9320]

You guys got it. I wasn’t sure if the speaker did.

[@activemotionpictures]

11:03 - you're absolutely right. This is not logical inside the movie's logic. It just is a "chamber presentation" of the driving plot. It couldn't be done in another way. When people listens to the dialogues from the last 10 minutes of the movie and the first 10 minutes of the movie, it all "connects". Genius scripting.

[@chokkamokka49]

Well done Michelle. Thank you so much for taking the time to explain in detail what’s happening. I’m finally getting my head around the plot, the timeline and the physics of it all. I get maths, I love the movie, and I’ve watched it twice, but ....hells bells, its an almighty mindf**k! Ive watched (and rewatched) all your videos about it, which are ace, and now i understand it better. Thank you so very much. I hope that PhD on “the physics in the plot of Nolan’s films” is coming along nicely . :)

[@TeaBreakFilmReviews]

Thank you and great idea. I should definitely contact a University and see if they can award me one just based on these videos, haha.

[@davidknightx]

Literally, the best most honest Tenet explanation I've seen yet. It takes a lot of guts to say in your explanation video when something doesn't make sense. She's right about the reverse gun fire part. They should've just left the gun range and opera scene where Neil saves the Protagonist by reverse shooting out of the movie. It wouldn't have effected anything and this all breaks the movie's own logic.

[@cloecloe1]

Wow! This woman just did the best analysis of Tenet I've seen so far. Very intelligent. Thank you for your awesome content!

[@pmhwong]

2 things just occurred to me about time inversion while watching this video: 1. Is there a need to go to the bathroom and if so, would that be inverted? Wait a minute... 2. Benjamin Button was born inverted! Or at least his aging was...

[@aromardu]

That one episode of Red Dwarf gave a possible bathroom in reverted time answer. It wasn't pretty.

[@westmcgee9320]

It’s not complicated. From your own perspective, you would relieve yourself normally. Some creepo watching you would be freaked out to see you walk into the bathroom backward, drop trow, and then catch your waste in various orifices from the reverse-flushed bowl.

[@springinfialta106]

@@aromardu That was the absolutely funniest use of the phrase "Don't ask!"

[@richserrantsport7862]

I love your analysis of the bullet scene with the chunk of wall! I too couldn’t make sense of it within the rules the movie set up Your breakdown of the concepts is the best I’ve seen, thank you and awesome work 👍

[@neonalexandergomes8963]

I think the movie explained that quite well, to the bullets point of view the trigger is being pulled backwards as they are inverted, even though you are pulling the trigger as you are in normal time.

[@j.l.jackson5950]

Same here. The deterministic interpretation is all that makes any sense to me since there is no firing of that same bullet by an inverted Protagonist at the same time. Therefore, “this was always meant to happen” is the only way to reconcile in my mind. Just glad that someone else found this troubling for the rules of this universe.

[@LWAigasu]

@@neonalexandergomes8963 When The Protagonist can not pick up the bullet its because he hasn't dropped it yet. We never see him drop it, we see him catch it because thats him dropping it. He's not shooting the bullet, he is catching it. Not pulling the trigger but releasing it.

[@LWAigasu]

@@j.l.jackson5950 Im wondering if thats part of the wall at the end of the movie. Its said the bullet was recently made, which lead him to Priya. That is her turnstile at the end of the film right?

[@peterdegravio1056]

Agreed with nearly all of these comments, this is BY FAR the best ACTUAL attempt to break down this very complex film! Loved the visual examples and the calm delivery of ideas! All the other videos I just wasted time on were just rants about the plot and too hard to follow! If only I could invert that experience and start with this video! Great job Michelle!! :)

[@pmhwong]

Clear explanation of time inversion and entropy concepts. Thank you. 8:37 "Woh!"

[@KCTheArtender]

Even with all its questions and some need for suspension of disbelief, I really liked the film! It was action packed, exciting and just plan fun to watch. I enjoy when movies leave a positive enough experience to make you discuss them afterwards. I find Nolan's style still refreshing regardless of how long he has been in the business. Action is never just run-of-the-mill with him.

[@ivanrodrigues8595]

Well done... Love the reversed speech in the end of the vídeo... Loved the airplane explanation. Congrats.

[@ChristianBrugger]

I agree, this is the first video that actually *explains* things. Not just a fast review of scenes. Thanks for doing that.

[@kunalb902]

this is the best and easiest explanation of the movie.. was head-butting myself to get answers and you have answered all of them.. thank you so much

[@mnreddy6443]

I watched the movie five times and read Reddit, quora and watched several other videos. None of them gave me the full picture until I watched this early in the morning. Awesome work. I'm gonna watch the movie again after this. Thank you :)

[@amisikiarie]

Excellent review. My thought on the inverted bullet thing is that there is a kind of law that governs the way inverted objects interact with "non-inverted" objects, or rather, the way that objects which are in inversion relative to one another interact. When the two bullets are shown on the table the lady puts her hand on top of the inverted one and then as she simulates having dropped it in reverse it un-drops into her hand. From the bullet's perspective she simply dropped it. So if she attempted to pick it up, from the bullet's perspective she would be moving her hand away from it. I think the real difficulty is in explaining whether the inversion machine introduces a gap of sorts to prevent an inverted object from occupying the same space as it did right before the inversion. At the moment an object is inverted it occupies the same location as it did. Without this gap it's hard to see why we get multiple copies.

[@Yarblocosifilitico]

I think the real difficulty is explaining how they interact with the world when they are inverted. Can they eat and drink normally? If so, what makes the water they are drinking un-invert? Or do they not drink water even though they travel back for months? Did they bring their own water through the reversing chamber? If so, doesn't the reversing chamber reverse the water? (meaning it would go from your body to the bottle when you 'drink' it). Etc, etc. Lots of questions that this movie doesn't address. In fact, it solves them by telling you not to think about it. And still a lot of ppl thinks this movie is genius and that it treats the audience like smart ppl hahaha

[@eli-shulga]

Great break down! Some stuff : 1. There was some talking about "Entropy decay" effect on reversed objects. So and object makes some damage it will not stay for ever going back in time. For example if a reversed bullet leaves a hole in the wall that hole should stay there till the time that wall/building was build.. But in the movie it disappears in a few minutes. So with the same hole example, if someone moving in the past forward in time he/she will see the hole slowly forming (Entropy decay in revers) and then after some time the hole is "un damaged" with the reversed shot un fired.. Now this is sort of proven with the hole in the Opera and the Oslo scenes. But falls short with first wall in the shooting range, because the holes been there (assumingely) for a long time.. But this is a nice explanation that solves some small stuff.. for example the actual worker that did that part of the wall would have to "build" that hole with his/hers own hands, which is kinda weird. 2. Im not sure the part of 3 instances at 4:21 is correct (maybe I failed to understand something). If 1 goes into the machine there will be 2 instances of him/her in the time prior to the second entering the machine.. A split of a second after entering, there will none.. So for a side observer, the one entered the machine disappeared completely after entering.. Now if instance 2 will reverse him/her self again and go forward in time, going pass the time original instance entered the machine then, there will be 3 instances up to the second the first instance went in, after that there will be only 1.. Not sure im right on that one.. All and all, one of the best movies I saw.. So much brain food.. Even with its some logic holes.. | Thanks for the vid , looking forward for the actual movie, spoilers one :)

[@sirius911]

Shit! This is the best fricking explanation video from Tenet I’ve ever seen. And you have like a thousand subs! Wish you the best of luck on your future career, keep it up!

[@victormponguliana5007]

Just WOW... No one explained Tenet better that u... I’ve watched thousands of different videos on youtube; and this is the first time im writing a comment... Me subscribing to your channel wasn’t enough... Just WOW... Thank you... 🙏🏿

[@MohammedIhlas]

This is the best TENET explained video I've seen on the Internet 👌🏻! Everything you explained was crystal-clear 👌🏻 and so easy to understand 😊! This KZbin channel is highly underrated ❤️! Keep up the fantastic work 👏🏻!

[@balamuralikrishna6082]

Time inversion is super easy, barely an inconvenience. Great work in breaking down the Nolan's theory of time inversion. Your explanation helped me to understand Tenet to a great extent. Thanks

[@d1want34]

this is the clearest and best explanation I've seen so far.. subbed!

[@mzaman1532]

You've explained every detail so simply and thoroughly. This the best tenet explained video in youtube so far.

[@ajitpatil447]

About to relese Tenet tomorrow in india and I was desperately going through many explanation videos. Your videos are best amoung them. Thanks

[@thebunker03]

I cant stop watching the movie . You explained everything with a ease . You deserve my like and my follow . 🔥

[@pankajsarmal2038]

You left perhaps the most important question of the movie Did the protagonist get his hot sauce which he ordered an hour ago?

[@unknown-pu3by]

Lol🤣but he gave the hot sauce to Henchmen

[@viccypress6292]

🤣 yeah you right. *NEIL* "Don't let get cold"

[@tmp1k]

You wouldn't need to worry about going back too far before the machines are invented. Afterall our characters are using the machines before they've been invented. From my understanding, I guess according to the film, individual objects themselves can be inverted and be travelling backwards to before they were invented and constructed. For example inverted bullets. Or, as you say, perhaps something like the blueprints and instructions to build the machines.

[@ArunKumarMalaysia]

Wow very well explained ! Good production as well :) Looking forward to more videos !

[@TeaBreakFilmReviews]

Thank you for the kind words!

[@randymurphy9289]

Your thorough explanation helped my old brain to grasp parts of this movie that I couldn't understand. Thank you for simplifying it for me!

[@dangraves25]

Great vid! I've been researching since watching the movie for the first time last night. I need to go watch it again!

[@TeaBreakFilmReviews]

Thank you! I hope it helped. I definitely need to watch it again now, with this knowledge in my back pocket!

[@dangraves25]

@@TeaBreakFilmReviews Holy cow, go watch it again! I just got back from my second viewing. Everything fell into place. This movie is brilliant

[@jemsnowdon]

This is the greatest compliment Christopher Nolan ever received...thanks! I really enjoyed your insights

[@jaybestnz]

It is an interesting film, as even with spoilers or on the 3rd time watching, there is still stuff to learn.

[@westmcgee9320]

I’ve probably watched for a dozen times and I always see something new - even if it’s just a new thing to question.

[@julied2480]

The KZbin algorithm worked!!! This is the best video I’ve seen explaining Tenet’s concept. Thank you :)

[@shadynook86]

So, I'm here in a state that isn't yet allowed to have open theaters, so I've utilized a different means for viewing this film, I simply couldn't wait for whenever restrictions are lifted here. I mention that because the quality in which I viewed the film is definitely wanting, but I was still able to gather the bulk of what transpired in the film but I know there's some important things I surely missed. Alright, so that was a long setup for hopefully excusing this question/commentary coming off as dimwitted. But I was super puzzled as to how Kat went back in time to the boat with her husband. Did she simply time travel or was she on the boat inverted? And if she was on the boat inverted, why didn't she, and her husband have on oxygen masks?

[@TeaBreakFilmReviews]

Hi Christopher, thank you for watching. It is a complicated film so all questions are welcome! Kat, Neil, The Protagonist and Ives inverted time to the point of the Vietnam vacation on the boat. We don't get shown this but they must have gone back to normal time once they reached the correct day, therefore they didn't need oxygen masks. Sator did the same thing but we were also not shown.

[@hello2jello4mellow34]

I too had to find alternative ways to view this and boy was the sound terrible.

[@shadynook86]

@@hello2jello4mellow34 Quite terrible, and that's on top of the fact that reportedly the dialog sound in theaters wasn't that great to begin with lol.

[@fastwebcam]

@@shadynook86 The dialog sound was good except in places where it was intentionally made bad to keep you safe from spoilers. On the second viewing everything made sense and I was just enjoying the loud music and explosions.

[@aadityaareddy23]

Best Best Best... Explanation ever.. You literally deserve more and more subscribers..than you have..I definitely recommend this channel.. Awesome

[@thrillsnewengland7429]

My one question is: How do you go from one turnstile (red) to another turnstile (blue) during inversion without walking into it?

[@ohexenwahno5652]

I think that's why they needed 2 turnstiles, because you can't go back through the same one without running into yourself, I guess.

[@westmcgee9320]

I think some kind of handoff is implied. They’re bit reflections of the same turnstile, from what I can tell, but the interior shots indicate that no one is walking from one side to the other either.

[@guillemiami]

Great video! Probably the best one I saw on Tenet so far. And a possible explanation on plot holes or unanswered questions, it's at the "bullets wall" scene: the scientists explains the reverse dynamics of the objects, then the protagonist goes "I don't get it". And the scientist (a logical mind) says "just feel it". The second time I watched the movie, I took that as a signal from Nolan to enjoy the movie, and don't over think too much. You have a new follower girl. Keep it up.

[@roland6497]

Great review. On a scale of 1-10 what would you rate this review? :)

[@TimothyJohnsonYouTube]

Best on the net so far

[@hello2jello4mellow34]

10 as in BEST on the Internet. Period.

[@yeshayahu8358]

10. She's very clear in how she explains things. =)

[@BenedictTownsend]

10!

[@tharunv6056]

11

[@Krishhaan]

Thank you.. Best explanation I’ve seen!! One clarification regarding Kat’s multiple occurrences in the climax. As u said even if they are in the same timeline, they both have to co exist together and live up to the future. They can’t change the past. So the same will repeat in the timeline right. She will get shot again and she will need to inverse and move to the past. And cycle continues

[@trevormalcolm4328]

I’m still watching, 2 aspirin please!

[@donniechambliss1346]

I'm prolly on my 4th video now and you killed it! Great voice and explanation! 🙌

[@mzaman1532]

same

[@mgrush7777]

SOMEONE ANSWER THIS!: I'll use the fight scene between the protagonist and his inverted self as my example... Protagonist & Neil enter the room to discover bullet holes in the glass, which haven't happened yet. There is also a gun on the floor. We all know how they get there, by the inverted protagonist dropping the gun and shooting the window respectively. But to a non-inverted person, how long has that gun been on the floor? How long have those boles been in the window? SOMEONE ANSWER THIS!

[@Fridaey13txhOktober]

The glass obviously wouldn't have been put there if it had formed bullet holes when it was first made, now would it? Even if there were strict orders to the manufacturer to disregard anything odd like this, paradoxing the timeline would be waaay too easy. Member how inverted protagonist is starting to feel pain, then starts bleeding shortly before the incident? A normal wound would have been noticed earlier, it's forming at an accelerated rate. The bullet holes & remains starts "forming" shortly before the incident. Then they disappear during it as we see. But what happen from the bullet hole perspective? With the bullet squashed, the inversion would dissipate (hence why the scientist woman had green glows when handling inverted objects) and they go back to normal time. Assuming the holes starts forming 1 hour before the shot for example, it would then apparently start reforming 1 hour after the shot. The bullet remains, if they keep more of the inversion within them, could start forming 3 hours earlier and re-forming 3 hours later instead. It would also necessary for the plot, the machines to invert time would have had to, from the normal perspective, to "appear" seemingly out of nowhere to begin with using some unseen machine specialized for just that purpose.

[@mgrush7777]

@@Fridaey13txhOktober I like that explanation for the bullet holes, but what about the gun on the floor in that same scene? I can't imagine that gun just fading into existence like Marty McFly disappearing in Back to the Future, but in reverse. That would be way too cartoon-like for this movie. Surely that gun can't have just magically appeared? Well, it didn't, because the inverted protagonist dropped it. But from a linear point of view, has that gun sat there for years? Or did it just fade into existence when the turnstile did its thing. I mean that scene comes from a turnstile function that was a couple of weeks prior didn't it? I love the movie, by the way, I'm not hating on it. I'd just love someone to come up with a solution to this.

[@CallsignJoNay]

@@mgrush7777 There is no solution to it because the premise is impossible. You gotta turn your brain off and suspend your disbelief to accept the mechanics in the movie. My method for suspending my disbeliefe is like this. I like to think the gun doesn't fade into existence Marty McFly style, but instead pops into existence shortly before the incident when nobody is looking. I like to believe that fate ensures nobody is looking in the right direction when the gun appears, and if any security cameras exist in the area fate ensures they malfunction.

[@mgrush7777]

@@CallsignJoNay I like that very much. Good response.

[@cecilsmith24]

The gun and bullets are traveling backwards in time, so what happens "before" that point in the normal timeline doesn't influence the events as they happened. The protagonist is bringing the gun with him so it will be there for this interaction. I think you get into the idea of diverging multiverses as someone who works there in the past would pick up the gun and move the gun, but the gun will get older the further you go back. The part that doesn't make any sense it when the are first teaching him about the bullets coming back into the gun. The shell would have to be available out side of the gun and it would have to jump into the gun, along with the gun powder and the bullet. Cool looking for cinema, but doesn't make a ton of sense.

[@e.s.5529]

Jesus this was shockingly good , the best I have seen and I watched like 10 to 12 at least . Bravo ma'am

[@wino0000006]

There is a note in the movie that an inverted person should always stay away from the other version of oneself. But the protagonist fights with himself.

[@FelipeUebio]

He doesn't know that it is him.

[@PS4everROCKS]

That's why he was wearing the black suit for this scene. It shielded him from interacting with the particles of the past Protagonist. During the Protagonist's first time inversion, he was given the option of wearing the protective suit but he rejected it because they didn't have time.

[@Glitch-zn4qr]

That's another plot hole, cause his past self stabs his present self, and he wasn't wearing gloves, so they would of made contact regardless of the suit through blood

[@westmcgee9320]

It’s not a plot hole and (lol) sorry, Felipe, but not knowing is irrelevant. Anyway, the suit’s job is to protect them from that kind of situation. Being stabbed changes nothing unless that lead to direct contact. Clearly it did not. In fact, the stabbing healed and closed the wound and suit damage because he was inverted.

[@ahtasham_syed]

So far the BEST Explanation , and you are the first one to talk about the Plot holes.

[@deanwolfechannel]

Dang you're smart. Thanks for doing the heavy lifting.

[@TheGiovanniS]

Well done, a calm well paced analysis of the concepts behind Tenet, without pretending to know it all and without glossing over points that are really hard to explain. By far the best I’ve seen so far.

[@darlingsweetheart8146]

8:22 I finally got an explanation for this

[@tejasai9526]

I'm so glad somebody got determinism in the analysis. The entropy rules apply in anticipation of being shot. Brilliant analysis 👏

[@RufatAgayev]

The only video I have found that actually explains the events and concepts in the movie in a clear and understandable way. Thank you Michelle! Liked and subscribed. ): !oediv eht fo dne eht ta ereht did uoy tahw was I ,yaw eht yB

[@-441-]

Seriously. Your breakdowns are second to none. The best out there.

[@hello2jello4mellow34]

Very good point about other body functions! Nolan is always skipping over facts in order to reach the goal.

[@Caped___Crusader]

Check out Carter Butler's recent comment, it will help you will better understand. And Nolan is genius for even diving into these concepts head on and making them work so effectively within the framework of cinema. I'd suggest not taking cheap shots at a legendary director with a tremendous body of work just because you perceived an issue with some logic.

[@ayushkastruggle3572]

Only video which actually explained in a way that I can understand, keep going, you'll get from 1 million to 3.64k subscribers in no time.

[@leezr86]

Thanks for a very detailed review, best one I have seen on KZbin. I have a question that I hope you can provide some clarity to. For a person to invert, you need to go through this turnstile. 1) For this said person, is he/she exiting the same turnstile? 2) In the scene where sator shot kat, there were 2 rooms in red and blue with one turnstile each. If the person went through the turnstile in the red room, he/she should have exited the same turnstile but in the blue room. My question is how can protagonist see the whole event unfolding since technically there should only be one room with one turnstile. How can he (in red room) sees across the blue room? Is there actually 2 rooms with 2 turnstile in reality? I hope I have written the questions that are easy to understand. Thanks

[@TeaBreakFilmReviews]

Hi Absolute Zee, thanks for watching! 1) Yes. I would say that a whole turnstile machine needs both the red and blue sides, otherwise it does not work. You cannot jump to another time machine, that would be teleportation, which is not a feature of Tenet. 2) Yes, there are two rooms but I would say each room holds half of the turnstile machine in each colour, as mentioned above. During the Sator shooting Kat scene you can see the glass that The Protagonist is looking through. That is the how you can see between the two sides.

[@moses1416]

I agree with a lot of the other comments. This video does a better explanation of the film than most of the other vids, which have over 100K+ views. Those vids are simply sensational hypes describing the plot as we all know it without actually answering the questions in peoples' minds about the movie.

[@tejassamant91]

I need this in my life I am always late.

[@auror9792]

I don't think there's a better video explaining tenet . Thnx for this🙌🏻

[@DavidOakesMusic]

I'm just unclear when the hole in the wall appears when neil saves protagonist. Is it always there ?

[@westmcgee9320]

There are some who believe that the reversed entropy/radiation pushing against regular time eventually wears out. From that perspective, if we reversed time and watched that spot, the hole would have existed well before that point in time but would have formed, seemingly spontaneously, at some point - not necessarily when the building was created. I don’t find it hard to believe that the explanation is simpler: the damage occurred at some point and if any people even noticed it, they likely assumed why it occurred but did not feel the need to repair it. Either explanation works for that and for the side-view mirror in the BMW.

[@InimicalWit]

11:11 This is actually in line with other things I’ve wondered - because which way things are moving starts to get really confusing. Like the broken mirror on the car. … when did that mirror get broken? That car … left the manufacturer … with a broken mirror? Because the damage was traveling backward? … what sort of circumstance lets a car be sold with - used car straight out of the factory? I don’t know lol Maybe it’s related to what you were clarifying, previously, about her wound and how it would only get worse with time? … Following that broken mirror on its journey of reverse entropy, from the moment it’s broken until the car is “unmade” into its raw materials would be fascinating lol 💙💙

[@Temuulen_tetris]

Me who watches Dark : Ah, yes the basics

[@JESUS-666]

Bro that’s time travel in dark here it’s reverse entropy mainly. Its more complicated

[@TheS888888]

I watched Dark , and understood it without any issue , but Tenet made my mind hurt. It could be the fact that so much info is compacted in a 2 hour movie . Loved both of them.

[@MajinGouki]

thank you a lot , you made clear how inverted people traveled without oxigene and without was seen inverted by normal people (and they will see them inverted too at same time)

[@danieldravot341]

When a film requires explanation it has lost its primary goal, to entertain.

[@danieldravot341]

@@jacobmallad111, I am as much a critical thinker as the next guy, but making a movie that requires explanation by dozens of pundits on KZbin and in the media is clearly too convoluted for its own good.

[@marcusenglish7610]

By far the greatest explanation of the movie. Thank you for explaining entropy and the difference between Time inversion vs Time travel. We need more quality content like this!

[@hightechgeek]

This is the first video I've found that tries to actually explain Tenet using thought, logic, theories and an explanation. Thank you! Well done. Everyone else I've seen just recaps the plot and explains nothing.

[@andersonbutilheiro]

Michelle, about Sator owns plans to dead: when he is speaking about why he can't release Kat, he says: "if I can't have you, nobody will". I think is the same thing he thinks about the planet, universe, whatever. He is dying. So, if he can't lives in this world, nobody will. It's not just a "villanious" desire to destroy the world because he is bad, but because he thinks nobody deserver to live more than himself.

[@SVanHutten]

Your question @ 2:17: Why the bodily functions, but respiration, keep going in the usual way during inversion? I guess the answer is simple: the inversion process just reverses entropy. This means the inversion only reverses processes that are spontaneous, like metal rusting, the melting of ice in a hot environment, the dissipation of a gas, etc. Life as a whole is not a spontaneus process, requiring a constant intake of fuel (food) and oxidant (oxygen) to keep things going opposite the spontaneous way (death and decay). I would venture some step in the oxygen path to the blood may be naturally spontaneous (for real or at least in the fiction of the film) and then no longer spontaneous during inversion, unless the oxygen level is raised above normal (by the law of mass action). All this, of course, keeping in mind we are talking about a work of fiction where things should make some sense but 100% consistency is not mandatory.

[@martina.7376]

thank you sooo much!! I already watched Tenet 5 times and I couldnt understand it 100% . I saw the timeline video and this one and I will go to watch Tenet for the last time knowing that now I will fully understand it!! thank you thank you thank you! I recomended this video to all my friends! :=)

[@mylesdlm]

i wanna clarify Neil's LAST inversion (which isnt shown in the movie). 1. so he inverts himself. 2. goes THROUGH the tunnel... which was already blocked??? how? 3. reached them at the center but Ives and the protagonist are already BEYOND the door. 4. Neil unlocks it and sees them BACKING OUT of the place..back into the tunnel since they are inverted in neil's perspective. 5. locks himself back inside ... ??? 6. then catches the inverted bullet (in his perspective) through his head. is that how it happens? that part's the most confusing for me because it's the one that's supposed complete his arc.

[@saddyaudetore7431]

Agree best tenet explanation video On yt. Other channels just spitting plot but here she explain full science of that movie

[@juliantheisen8408]

This is by far the best quality explanation video about Tennet i found. Really good Video!

[@orangenostril]

10:17 Remember when The Protagonist says something like "But cause comes before effect"? and then the scientists shows how you can make an inverted bullet 'jump' into your hand? What's actually happening with the reverse shooting is that the bullet is flying back into his gun, and then the protagonist clicks (or unclicks) the trigger. In inverted time, effect comes before cause. That's why you see stuff like the puddle splashing up into The Protaganist's boot before he takes the step, guns flying into people's hands before they unthrow them, or walls rebuilding themselves before they're hit with an inverted rocket.

[@Adrian_Creates]

This is the ONLY video about Tenet that has helped me understand (or at least begin to understand). Seriously, thank you!!

[@tmacmc2984]

This is my kind of breakdown and explanation, very intelligent analysis. looking forward to clicking the timeline vid after this, funnily, when someone reads that last sentence that action will be in the past but as I type it's in my future. Anyway, great stuff, aware of the fundamental concepts talked about here but appreciate the breakdown in reference to Tenet. So many of these junk channels screaming "Tenet Explained" only to regurgitate what they and we have just watched on screen with no deeper insight into the concepts and characters and their agency within the plot. Good stuff. Subscribed.

[@Haraamcore13]

This is soo good. Much better than the annoying explanations on these other popular channels.

[@thalamay]

I‘m a bit late, but I want to address two points you made: 1) Regarding the supposed plot hole with the protagonist (un)shooting the gun: I don’t think it’s a plot hole. The gun was inverted as it is. In the gun’s inverted timeline, nobody has fired it until it gets to the protagonist. The protagonist then fires the inverted gun, the bullet hits the wall and travels backwards through time from there. The only difference to later occurrences was that the protagonist himself was not inverted. So to him it looked like he was un-shooting the gun. 2) Regarding the algorithm: This is actually where I see a potential plot hole. Because if the entropy of the universe is reverted completely, then people should actually grow younger, etc. Yet the future seems to think that they’ll continue to exist as normal, growing old and dying, but moving backwards in time. But then it wouldn’t really be this reset, the universe wouldn’t change, it would only be a large scale inversion and future humanity would exist simultaneously with past humanity, not extinguishing it.

[@MDBowron]

there's also an idea called a light cone, where an event occurs in a particular place in space and time, and how since it can be seen by those ahead of it physically and behind it physically, it is both recognized by what we perceive to be the future and the past. It has a place in time and space from both directions, and is thus affecting both the past and the future if that makes sense.

[@jdeebz1]

Fantastic explanation. This should be on the special features disc that comes with the movie.