Can Humans Breathe Liquid?

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Credits:
Writer/Narrator/Editor: Stephanie Sammann
Editor: Dylan Hennessy (www.behance.net/dylanhennessy1)
Illustrator/Animator: Kirtan Patel (kpatart.com/illustrations)
Animator: Mike Ridolfi (www.moboxgraphics.com/)
Sound: Graham Haerther (haerther.net)
Thumbnail: Simon Buckmaster ( / forgottentowel )
Producer: Brian McManus ( / realengineering )
References:
[1] en.wikipedia.org/wiki/Perdido...)
[2] en.wikipedia.org/wiki/Atmosph...
[3] pubmed.ncbi.nlm.nih.gov/14461...
[4] pubmed.ncbi.nlm.nih.gov/5938414/
[5] www.ncbi.nlm.nih.gov/pmc/arti...
[6] www.sciencedirect.com/topics/...
[7] johnclarkeonline.com/2011/06/...
[8] www.independent.co.uk/news/sc...
[9] www.undercurrent.org/UCnow/di...
[10] academic.oup.com/bja/article/...
[11]engineering.cmu.edu/news-even...

[@FrankJonen]

Q: Can Humans Breathe Liquid? A: Once.

[@iplayksplol9974]

eh maybe a few times

[@albinoviper2876]

we were not humans then either

[@mmdirtyworkz]

You failed the test.

[@fizzinsoda]

@@iplayksplol9974 then probably end up getting sick and dying after switching to oxygen

[@simarkarmani4034]

You die.

[@ballroomscott]

Having to drown yourself in order to start breathing liquid sounds HORRIBLE!

[@WarrenGarabrandt]

It didn't look very fun in that movie either.

[@jhyland87]

Out of some weird morbid curiosity some time ago, I was researching what it felt like to actually drown, and quite a few of the people who had drowned and survived said that the worst part was the panic right before hand, and the slight pain of actually taking in water, but immediately afterwords (with lungs filled with fluid, but not yet dead), they reported that it was quite peaceful and actually painless, much less terrible than what they would have expected it to be. This is quite mind blowing, imo. Now I'm not saying it still wouldn't suck to have to do it, but maybe it's not quite as bad as one would expect?...

[@faikerdogan2802]

@@jhyland87 that doesn't sound any convincing but it's good to hear XD

[@nickbrutanna9973]

I am sure you'd need to get some practice at it, but the human brain does lots of strange things remarkably well with repetition. For example.... if you put on a pair of inverting lenses -- i.e., "eyeglasses" that invert everything... you will need help going everywhere for a couple days... then, all of a sudden, your brain flips a few circuits around, and Voila!! you perceive everything as "rightside up". NOW, if you take off the glasses, everything is upside down... but after a few more days, the flip reverses, and things are back to normal. Do this multiple times, and the time it takes to "flip" things gets shorter and shorter. My own guess would be that the drown response would likely suppress itself after a number of such events.

[@PrestonW9]

@@nickbrutanna9973 my thoughts exactly. The thing that would concern me is that this developed comfort of inhaling liquid could be dangerous when in non oxygenated water

[@Lord_Baphomet_]

I think it’s insane how pneumonia is basically liquid in your lungs turning moldy.

[@simarkarmani4034]

Ewwwwwwwwwwwwwwww!

[@grantmaciver9597]

Yeah and people vape !

[@Kunfucious577]

@@grantmaciver9597i always wondered how vaping could be harmless. I’m sure we’ll find out in about 10years

[@ssgoko88]

​@@grantmaciver9597ok?

[@HerrscherPuppet]

@@ssgoko88bro…. You didn’t know people vape? You should be thanking that commentor for letting us know! Otherwise we’d have no idea!

[@c_money8080]

I've drowned before and it was always my biggest fear. Even though I lived through it, I'm still scared of it because it was horrible trying my hardest not to breathe in the water. When your brain forces you to breathe in the water I went unconscious which was actually a huge relief from the stress on my lungs. I don't think I held my breath longer than 2 minutes but it felt like 30 minutes. I hope I never have to feel that again.

[@Psilocybism]

I would do apnea training if I were you. But then on land. Seriously, otherwise you might stay in that fear. You will find much more peace. From the sea we come and to the sea we'll go.

[@makermeeter7562]

Fun fact, CO2 is causing that feeling you described, it happens because you hold a breath. Actual drowning feels different.

[@1981stonemonkey]

@@makermeeter7562 How would drowning be any different from inhaling water and passing out? Is it defined as dying from this (and having to be resuscitated to live to tell the tale)?

[@gertpacu3926]

I had a similar thing, but I did not drown. I actually got out in time. I was being a dummy in the spa. In warm water you can hold your breath longer so I wedged myself between the railing and the steps into the spa. It's a built in spa so the railing went into the water on the stairs. Anyway, I wedged myself in and was doing it alone trying to beat 4 minutes under water. At about the 2 minute mark I realized I was stuck and started to panic. When I panicked I needed to surface. I used up my oxygen when panicking and couldn't get above the water. I was very lucky that I would train to hold my breath longer and longer because I thought it was a cool party trick or I would have drowned. I had to turn my body where my stomach faced the top of the water and I got myself out. Another 15 or 20 seconds and I would have drowned.

[@jusbertmeza4424]

@@Psilocybism ive drowned before and became unconscious and it was scary at the time but im not permanently scarred forever. I still swim and have no problem getting in water but i am afraid of drowning again

[@aleisterlavey9716]

"What are you doing for a living?" "Drowning mice, while trying to not kill em accidentally."

[@PossumsDont69]

Wait, you are getting PAID?

[@Slugcatsam]

Hehehehe, I like this comment

[@BillyViBritannia]

Rat: "Thank god, I thought they were trying to drown me." Scientists: "Ok now let's see how long until it dies..."

[@pimp2570]

* *The rat will remember this* *

[@SAIYANPRINCE777]

Rat: those bastards lied to me

[@rz7133]

"oh, it didn't die? Now let's see if it can re-breathe normal air or whether it will suffocate..."

[@xeth9074]

Millions of rats die for science. If rat dies, humans are very likely to die from the experiment. 🧪

[@grimgor3068]

@@pimp2570 did you know that mice are capable of passing down information all the way to their grandchildren through their genes? For example one generation of rats were subjected to electric shock when they were near a certain gas. To the point where their brains were conditioned to react to the gas by shuddering even when there was no electric shock. The interesting fact is, the offspring of these rats who had never been around this gas their entire lives still reacted the same way their parents did.

[@ToastyNoneofyourbusiness]

I think I heard about an experiment where a woman had lost the fear response due to brain damage (i think she was missing an emygdala?) The only thing that was able to trigger a fear response was drowning/asphyxiation. Just goes to show you how instinctual that fear is

[@rubidiumstrontium6427]

If I remember it right her amygdala was damaged

[@Theiliteritesbian]

Its a brainstem reflex

[@szili76]

So... no fear? Oh man that sounds awsome!

[@EC-dz4bq]

@@szili76 sounds boring, fear is a emotional response. Who the f'k wants their ability to feel, to be less? Makes you less human in a way... Also most people that have it... die young. Keep in mind, ignorance IS bliss. So these people won't ever know what they are missing... still sad though. Fear, has a job in love too.. IE the fear of a first kiss, or fear of asking a date out. Fear is just not fear of pain and death.

[@altaris6593]

Daamn ! I alerady have slightly damaged emotion drive cause I hated them ( Back in my school days I saw emotions and sexual needs as usseless trash) and suppressed them , which caused me to be unsure if I trully like something I like- so now I am less human which is not cool or fun in any way😞

[@robz5435]

The movie, "The Abyss," was an interesting flick.

[@larr3073]

One of my favorites growing up.

[@everettamador9885]

If possible...The advancement

[@sprogg2001]

I remember the rat

[@audiebeasley6611]

I watch it every time I run across it, awesome acting

[@aj5993]

Ever seen the sphere?

[@gioworno]

"the deepest a human ever dived was 332m" The subnautica guy: *pathetic*

[@VashStarwind]

Actually the deepest actual dive was 534m, the 332m is from a recreational dive. The deepest pressure anyone has been at was over 700m but that wasnt an actual dive.

[@ftoalan]

yes but hes holding his breath not breathing

[@raczan162]

@@ftoalan in the game you clearly have oxygen tanks and rebreathers though so no he is not holding his breath. I think the fact that you have so little time is just supposed to act as a means of survival game mechanic. If the oxygen had as much time as IRL it wouldnt be very challenging would it

[@dullen2810]

@@raczan162 at 1.4km below sea level, the pressure would increase the amount of air used significantly, rebreather or not.

[@raczan162]

@@dullen2810 yes of course you are completely right. It was not what I was trying to say though, my point is that someone said that the person in subnautica is holding their breath but you have tanks and rebreathers. Even at like 50 meters deep the O2 time is obviously extremely limited as to not make the game too easy. Hope that makes sense

[@speedy01247]

I imagine someone getting so used to breathing liquids that one day they accidentally breathe in water when swimming normally.

[@dorian4646]

That's bad

[@QuizmasterLaw]

Nope. You have a natural reflex which prevents that even when unconscious. To involuntarily breathe in water you basically have to be unconscious for such a long time that your muscles run out of 02 for the second to last thing, which is breathing and the last thing to shut down before the heart muscle. It's amazing to me how well the body has evolved to die gracefully. It shuts down system after system in order of priority so the most important functions fail last.

[@jeremy-ws1rb]

Theyd slowly die never mind it

[@Deadbeatcow]

@@QuizmasterLaw if you trained to breathe liquid to such a point where it becomes second nature, it would be the diver voluntarily (albeit in an act of absentmindedness) breathing in water.

[@kylestanley7843]

@@Deadbeatcow exactly. Training the brain and body to breath liquids would have a pretty bad effect when you're actually exposed to water... which is a very very real possibility in the context of this video.

[@PixelDough]

I wonder if using anesthesia like at the dentist on someone before "drowning" them in the liquid would potentially overcome the psychological part. Like... If you're already underwater and breathing it when you wake up, how would your body react? Would it just act normal? Or would it suddenly freak out? Really giving me a lot to think about concerning the future of this sort of technology

[@blahthebiste7924]

Based on my dreams where I've been breathing underwater, I think so. Assuming the anesthetic also suppressed the initial gag reflex

[@VoidKyun]

it would probably suppress the inherent/uncontrollable responses but someone who just woke up would be in a state of confusion and be extremely alarmed to find theyre underwater

[@AnotherIcicle]

Good point but isn't that sort of defeating the object? Divers breathe more helium at depth and less nitrogen because nitrogen has a narcotic effect at depth which affects their ability to perform tasks. I realise that we're talking about much greater than the 40 - 60 metre range that are normally the issue at depth and indeed at the c. 200m range (? "citation needed" - I've only been to half that 😂) where HPNS kicks in but I can't help thinking that the effect of either gas/depth would be considerably less than coming around from an anaesthetic with lungs full of fluid and then being asked to go and cap a leaking gas well? Personally, even in my youth, I'd have told them to stick their job!

[@nemtudom5074]

I feel like it would probably freak out

[@scottshill1927]

@@AnotherIcicle I think the general anesthesia wouldn't be great for divers but it would be phenomenal for medical purposes. Put someone under, have them breathe in their liquid medication, remove all the liquid, bring them back from unconsciousness. We do a lot worse than that already.

[@stevewilliams3850]

That part in "The Abyss" with the rat breathing the liquid was real. They only did that scene one time because it traumatized the rat too much.

[@DeltaH-9]

Five rats were used for five different takes, all of whom survived and were given antibiotic shots by a vet. The rat that actually appeared in the film died of natural causes a few weeks before the film opened. According to James Cameron, the scene with the rat had to be edited out of the UK movie version because "the Royal Veterinarian felt that it was painful for the rat". James Cameron repeatedly assures that the rats used for this take didn't suffer any harm...IMDB. Where did you get your information from?

[@stevewilliams3850]

@@DeltaH-9 : Orson Scott Card took the screenplay for the movie and wrote a book about the movie. He mentions in his book that they only did that scene with the rat one time because it traumatized the rat too much. But that was real, the rat breathing the liquid. I first read about that liquid breathing in "Popular Mechanics" magazine in the spring of 1983 so when the movie came out in 1989, I new that was real.

[@DeltaH-9]

@@stevewilliams3850 I know it's real, but an interview with James Cameron said there were 5 rats, one suffered cardiac arrest and he revived it and then proceeded to keep it as a pet for a year before it died of natural causes.

[@ramblingrob4693]

BS@@DeltaH-9

[@MedlifeCrisis]

I somehow forgot they had a freaking rat actually breathing liquid in the movie! In ICU settings, outside of artificial surfactant, the problem has always been emptying the lungs, as you mentioned earlier. I think a lot of people regard it as a dead end unfortunately.

[@dandanthedandan7558]

Nice seeing you here!

[@MedlifeCrisis]

@@dandanthedandan7558 Wherever there is science, cosmic forces draw me near

[@pridefulobserver3807]

@@MedlifeCrisis ah... kindred souls

[@lohphat]

Also, the viscosity of the liquid causing damage to the delicate alveoli would seem unpleasant and irreversible. Also, how to suppress the drowning reflex?

[@AgedSwissCheese]

Please put what you said into a diluted form.

[@YM-zf8mt]

"What's your job ?" "oh you know, drowning voluntarily myself everyday so i can go a little deeper in the ocean." "sounds fun !"

[@junoguten]

"I shoot myself with small bullets regularly to build up tolerance for larger bullets"

[@paradisebreeze1705]

Hi

[@inevahdie]

Sounds like a terrible fetish

[@dfoster2513]

But that's where the best squids are

[@sealpiercing8476]

I mean, presumably the working context would be something like: "I drown myself for $20k a pop to fix something that broke at the bottom of the ocean."

[@TsuchiGamer06]

"drowning yourself in order to breathe" literally just Evangelion lol

[@springfieldFlute]

Wow, just you describing how to overcome the psychological barrier of trying to breathe in water makes my hair on my skin stand. It is extremely scary! Great content, I hope to see more cool science stuff from you.

[@darthtoast2151]

All this pressure equipment that people need to survive: Exist Subnautica Devs: I'm gonna pretend I didn't see that

[@xxfalconarasxx5659]

Or maybe, the oxygen tanks in Subnautica are actually filled with breathable liquid. I mean that's the whole selling point of breathable liquids. It eliminates the risk of nitrogen narcosis and pressure damage.

[@giannmikhael5939]

@@xxfalconarasxx5659 Ever wonder when you get out of you're vehicle you don't feel the pressure when you are in the deepest part of the ocean, you don't get crush by the heavy water

[@TheAirwolf89]

Trading Realism for Fun

[@fumesolo6709]

@@giannmikhael5939 huh different planet

[@32BitJunkie]

I just figured altera genetically engineered their people to be immune to extreme pressure problems, since they're in space so much

[@itsdomenik4105]

When she said "you have to drown yourself," i tryed to imagine it. Well, it was a horrible idea.

[@zerstorer335]

ItsDomEnik It was hard enough to convince my brain it was safe to breathe when submerged back when I was learning to scuba dive. The idea of trying to convince my conscious mind to breathe in liquid seems like it would be impossible.

[@hinglemccringleberry7265]

I am sure David Blaine would enjoy ;P

[@mikicerise6250]

Playing diving games in VR I can feel an impulse to hold my breath and have to have my neocortex order the lizard brain to keep breathing. ;) "Belay that, lizard brain. It's not real water." "Fecking neocortex voodoo..."

[@hellelujahh]

@@mikicerise6250 "Can't we do normal stuff like catching flies in mid air with our tongue?"

[@thealienlife]

Bruh, while reading this I heard the video say it!

[@timorisu6709]

now we're bringing LCL to real life

[@DjRjSolarStar]

I've been getting into deep sea things lately too. It's a closer form of space travel to me. Good to see you taking a similar interest Real Science : )

[@fredblogs12345]

This happened to me as a kid on holiday, I was swimming underwater and my leg got stuck. I was holding my breath for what felt like ages. I had my hand stretched out, out of the water, and kept it there in case someone saw me. I ended up breathing-in the water 2-3 times, although scary It was surprisingly easy. Literally, 10 seconds later my dad came by and realised what was going on, freed my leg, and dragged me to the shore. It hurt coughing up the water but the breathing part wasn't horrible, the fear of drowning was the bad part.

[@Karirawri]

damn, you're a certified badass

[@Crabman_87]

you deff don't have a gag reflex

[@polybius2282]

I did a similar thing swimming in a pool once, breathing in the water was a little scary, but it didn't hurt.

[@abdenacerfodil2546]

dont freaking rationalise it .

[@justintyme3043]

Lol kids say anything on the internets.

[@lifeprojects1]

Scientist: What If.... Lab rat: (heavy breathing)

[@shafayat1004]

I feel like lab rats would be rulers of hell. 😂

[@MrSecretMansion]

Idk how heavy the breathing would be

[@LeoLeo-yi5yx]

@@MrSecretMansion run one mile none stop then you know

[@xeth9074]

Millions of rats die for science. If rat dies, humans are very likely to die from the experiment. 🧪

[@herrakaarme]

@@shafayat1004 Rats had their time as rulers of hell back when they helped to kill half of the Europeans by spreading the plague.

[@joemck74]

QUESTION: If we can remove the CO2 via the veins can't we just oxygenate the blood that way and skip the whole breathing thing entirely? The urge to breathe is caused mainly by CO2 build-up so having oxygen directly delivered to the blood would be like discovering you could hold your breath comfortably for a *really* long time. Although you may need a lungful of liquid just to prevent your ribcage being crushed by the pressure.

[@iainrickwood2623]

If you're talking about having external equipment, why not go with an oxygen tank and breathing apparatus? Or are u think of something that would be smaller & less bulky?

[@margodphd]

We can breathe outside of the body - it's called ECMO but it's bulky, expensive and requires big catheters into major vessels which makes it difficult. I don't think any solution that requires being catherised into vessel that, were there any problems, could bleed You out fast, is a viable method for industrial use. Femoral vein catherisation is no joke and is dangerous even in clinical settings. Underwater, on a boat? Asking for septicemia. It requires pumping blood trough several filters and membranes as well as oxygen tank but it , even if not for the above, it wouldn't solve the problem of nitrogen dispersing into tissues.

[@kuessebrama]

I mean it is possible but the machines that allow this are pretty big so there is to be a ton of research on that too. But i think allot of people would not do this just because off something is pumping your blood our and oxygenates it. Even to think about those maschines gives me the creep. Yeah they are used in medicine but this is another scenario, you have basicly no choise. But on the other hand some people would do this so why not trying.

[@starfishsignal]

This is a cool video! I like your videos, good work!!! I was surprised when you mentioned PFCs, especially when you mentioned the medical applications. I know the video didn't talk about this subject matter, but there is some allegations that PFCs are a cause for certain ailments and defects due to runoff from factories using it as a fabric and surface protector, leaking into the water table and contaminating wildlife and watersheds, but I had no idea they could be used safely in medicine -- which I guess makes sense depending on what you are using it for. Interesting juxtaposition!

[@JesseBellas]

Doctors: I found the cure for Coronavirus Doctors: It involves drowning

[@PrimalRenegade17]

Can't die from coronavirus if you drown yourself first

[@murrayelliot]

Tell Donald trump. He'll put bleach in the liquid to kill the virus :) :) :)

[@sexygabby30]

@@murrayelliot you know what... I can’t with this comment this is too funny he does think that’s the all time killer bwhaaaaawhaaaa🤣

[@bayar0322]

Viruses can live in water too.

[@nousername8162]

t h e d o c t o r s a r e a h i v e m i n d

[@cmarano]

Doctor: I'm just going to connect this thing to your Femoral artery. Me: Oh HELL no.

[@Propulus]

Literally all about that was a complete fuck no.

[@bug5654]

@@Propulus You act like a little highly toxic soda lime in your bloodstream is a bad idea. Almost as though rebreathers getting wet can be bad....

[@FieryCoal]

As soon as they said that I was like NOPE NOPE NOPE... couldn’t even imagine wanting to sign up for that

[@anomalyp8584]

She is wrong about it being in an artery. It's way more demanding, invasive and dangerous to put it up an artery than in the adjacent vein, which stores more of the CO2 on top of that.

[@Leon_Schuit]

@@anomalyp8584 she actually said it was going into the femoral vein at 7:50, @cmarano is the one who is off here...

[@chaoticadventure]

I've had numerous dreams that as long as I breathed shallow and fast I could breathe under water,it's actually awesome I love those dreams exploring the ocean.

[@CutMeSomeSlackTheVII]

omg same. I think that comes from the fact that our brains just don't don't really know what drowning is like, so in dreams we just breathe anyway

[@kuessebrama]

@@CutMeSomeSlackTheVII yes if there are things the brain cannot comprehand it will just work different in dreams. It is like dying in a dream, you will just wake up or not die because the brain cannot fill the gap. Or some other things.

[@montikore]

I watched the abyss as a kid, and saw the liquid O2 bit, but never thought about it again. This is super cool.

[@thomasmcelroy5785]

and then drown yourself... only oceanic or extraterrestrial exploration ignite a passion strong enough for me to not instantly abandon this line of tech potential

[@alexnaturalis1179]

There's always some amount of money that ignites someone's passion...

[@theexchipmunk]

@@alexnaturalis1179 Hell, I would probably do it for free to get the chance to walk on the fracking ground of the sea. Where no one has ever stepped before.

[@zoleroid7027]

@@theexchipmunk I would just do it just so I know what drowning feels like

[@kaylamarie8309]

Yep, the movie The Abyss immediately came to mind while I was watching this. Seems they were spot on. I cannot imagine taking that first big fresh breath of..liquid.

[@espnpokerclub1246]

The star of the week that movie actually did that..crazy story;!!!

[@tylermech66]

@@espnpokerclub1246 yeah, the poor rat had no idea what it was in for!

[@johannesvahlkvist]

@@tylermech66 wanna hear something worse? our sensation of drowning is not related to how much oxygen is in our blood, but how much CO2 is. so the rat was absolutely feeling like it was drowning the entire time.

[@jordynchan5103]

Neon Genesis Evangelion came to mind actually, with how eva pilots are submerged in an orange liquid that's ionized and is the same density as air. Yeah, I'm a weeb, I know.

[@DiscoDashco]

@@jordynchan5103 Yeah, so you’re young. Go watch “The Abyss” and maybe you’ll stop being a Weeb, whatever that is supposed to be.

[@kelvinharris4921]

Ever since I saw the abyss.! I've been thinking about that scene with the mouse. It seemed to me that it would be a great way of flushing a person's lungs if they had been smoking cigarettes. Or even a medical treatment that could probably cure other lung ailments.

[@kennykuhns9843]

I considered that too. The problem is how to remove the cigarette tar without injuring the lung tissue.

[@mtrum79]

I lovethis channel!! Thank you!!

[@1dgram]

Breathing in breathable liquid for the first time sounds like putting in contacts for the first time, very difficult to fight the instinct but you'll get over it

[@JolleBoiii]

The difference being that failing to put in contacts results in slight discomfort, while [knowing that] a failure in the process of breathing liquid would result in an *excruciatingly painful, self inflicted death.*

[@brandongreene9615]

I breathed in a bunch of water once because I worked at a marina and closed my eyes when I swam under the gas dock so I didn’t lose my contacts. I swam under and when I came up I bumped my head on something that I immediately recognized as a pontoon. No big deal, I moved over a little bit with my eyes still closed and BUMP! Wtf I gasped and my eyes came open! I was not expecting a Tri-toon boat lol. I didn’t completely fill my lungs but I sucked in quite a bit.

[@Empika]

@@brandongreene9615 hmm, I wonder if you could trick the body into breathing in liquid then. Like have someone close their eyes, and then while they’re breathing in spray a bunch of liquid into their lungs

[@piyura6889]

Imagine trying hard to reach the deepest ocean just to be swallowed by a squid.

[@GimmeUrLuv30]

😂😂😂

[@scottb9997]

Thankfully most deep-sea animals are passive hunters

[@anonanon3066]

"I used the liquid to get to the liquid"

[@dragonwithamonocle]

I was actually just thinking about this the other night! I had already known about this by the time I saw The Abyss because of a PBS documentary I saw when I was a kid. Granted, the documentary probably came out after The Abyss, but that's just how things played out. Happy to see more on the subject all these years later

[@misablesk]

It kind of feels like, that if you are already scrubbing blood for co2, you could also oxygenate it at the same time, before returning it to the body, taking the whole breathing out of the equation. You could then fill lings with whatever liquid and be done with it.

[@vamsibalam]

Morty: May be we can with quantum ventilator, Rick. Rick: "Jesus, Morty. You can't just add a Sci-Fi word to a medical word and hope it means something."

[@adolfodef]

No! Wait... he is onto something... If we can selectively control the quantum tunneling effect so it only targets the covalent bonds between the oxygen & carbon atoms in CO2 (or precisely not "that one", either way works); then a device can filter it without the need of a chemical reaction like with the lime (adding any substance to the blood is dangerous); plus there will be no need to "refill" it constantly since it would only require electricity. -> If installed completely inside the body [storing the CO2 either as hot compressed gas or cold solid with an aerogel insulator coating], it would still need LATER "slow release" through the lungs using normal air respiration to "empty" it [may feel like running inside an overcrowded room while just sitting & it will take many hours... but it will work!]

[@opium42069]

Ahh geez rick.. mmhh

[@user-ko7lz3kr1d]

@@adolfodef Selectively controlling tunneling sounds really cool, I hope we figure it out some day. Or maybe do you have a paper I could read about this kind of research?

[@bellacutie25]

Nice

[@vamsibalam]

At this rate this comment will not exceed 400 likes

[@aronseptianto8142]

this sounded like something coming outta neon genesis evangelion

[@Quetzalcoatl_Feathered_Serpent]

Where do you think Eva got the idea from? ;)

[@guillermojrboy3292]

Or the movie, The Abyss.

[@HAPPYFUNTIMEx2]

@@guillermojrboy3292 or the movie, Mission to Mars.

[@DJRonnieG]

Ahh, the sweet taste of LCL.

[@klittlet]

gay

[@robertunderwood6788]

This is really fascinating. Great video.

[@mastergecko1178]

Advanced anesthetics could probably help future liquid breathing divers get over the “forcing yourself to drown” part. They put you under and hook you up with the life support system while you are unconscious and next thing you know you are breathing liquid normally.

[@ettanasf]

They’ve “solved” the panic problem in the scifi book series The Expanse. The answer seems to be sedation for the transition or drowning phase.

[@ghoulinthegraveyard399]

"The Abyss" a movie that had the oxy/liquid used is the same premise. The oxygen-rich liquid they show in The Abyss is indeed real. In reality, though, it looks just like water; for the sake of the movie, they dyed it light pink so that it would look “special”. The rats did indeed breathe the stuff; you can see his little sides going in and out. The filmmakers would have liked a nice long shot of the rat breathing the stuff to really show it off, but the rats kept panicking and defecating in the fluid, so they had to chop up the scene. Breathing the fluid strips the protective mucus coating on your lungs, leaving you prone to infections; the rats received antibiotic injections, and they were fine. Oopps should have watched the whole video.

[@maxscott3349]

@@ghoulinthegraveyard399 Wouldn't hurt to dye it to make sure you didn't end up with regular water. I could buy that

[@ashurean]

I'd assume it would be easier to just use an actual ventilator, but fill the lungs with liquid instead of air. Take all the decision out of it.

[@mostlycensored7668]

This is exactly what I figured as well.

[@ettanasf]

randy s that’s not true at all. It was only introduced in the latest book and there is ZERO mention of it killing people due to overuse.

[@Restilia_ch]

They need to try LCL as the transfer liquid. But in all seriousness, I think I'll just stick to air, tyvm.

[@Quetzalcoatl_Feathered_Serpent]

LCL was basically Angel Blood from lillith It makes sense that a super god like being with super rich blood would essentially be useful as a breathing liquid for a lesser being of similar genetic lines. Ironically we now have 5 types of PFC currently in testing 2 are successful one is used to help babies who were born prematurely as ironically babies are capable of breathing a liquid medium instinctively, and one other type is used to pass oxygen and nutrients in a body well a patient waits for a blood transfusion or loss too much blood the last one indicating we have essentially made a primitive form of LCL.

[@Cybornut]

Heh Evangelion references?

[@builder396]

@@Cybornut I was waiting for one actually.

[@insyirahhalim9940]

This reminds me of a book series called The Neptune trilogy by Polly Holyoke. The characters were engineered to breath underwater and the possibility of it blew my mind. Its so cool wathcing this video and seeing how it kind of justified the possibility.

[@gamingonward5144]

I love your videos! I am learning so many new things!

[@giacomoperin3257]

Medical student here. I often avoid so called "science videos" on youtube as i get bored at the simplistic and often way too divulgative explanations, but man this video.. this is excellent content. The lung physiology is absolutely on point, as well as the biomedical physics. Beautifully explained!!

[@lefr33man]

You might want to take a look at Real Engineering & New Mind, which are in the same vein as this one.

[@noahmead4652]

You sound a bit pretentious

[@Yggdrasil42]

Noah Mead No, that's just reality for people who are knowledgeable in their field. Many "dumbed down" videos actually go too far or don't understand the subject enough to remain accurate.

[@theawsomedude37]

What does divulgative explanations mean?

[@LemonsRage]

True most "science videos" are only surface level science. The real intresting videos are these wich try to go even deeper into the subject and try to really explain it. Most of the time you are stuck there and have more questions then real answeres because they missed to point.

[@horisonskies3868]

As an Open Water Diver myself, this was HUGELY interesting! I could never be a HUGE diver like the ones pictured in this video, nor am i qualified to use any of those, but it's just so interesting! (SSI Open Water Diver)

[@huliluliukuzelula]

What “level” or diver qualification do most astronauts have?

[@horisonskies3868]

Honestly, i have NO idea, probably VERY, VERY high lmao (instructor trainer style) But astronauts and divers are different things, astronauts use things similar to Closed-Circuit Rebreathers, (CCR'S) , So divers that are qualified with that at high levels are close to astronauts (still not the same)

[@MrOvidiuk]

@Astro Viator 😳 what? Depends if they do the course. They use water to simulate zero gravity but is not mandatory for their job to be qualified by some amateur diving agencies (PADI, TDI, SSI, etc). Plus, a saturation diver, a commercial one, has different skills that a OWD or even a Trimix tech diver. Different courses, different approach. And between an astronaut and a diver is a huge difference, same like between a pilot and a sailor, to be able to do one job great is not qualify to be good in other one. You can be a diver and have problems with hight, become dizzy, or to be a pilot and have sea sick...

[@horisonskies3868]

@@MrOvidiuk Yup... you explained it MUCH better than i did.. Whats your qualification?

[@mortenbund1219]

I'm only PADI Master Scuba Diver, and since I'm Not 18 I can't become an instructor yet

[@constantinvasiliev2065]

Great, as usual. Thank you!

[@coringerresheim9078]

Thank you for your great work!

[@chimedemon]

“So what do you do for a living?” * *cage full of mice* * “It’s complicated...”

[@jttech44]

*Slaps roof of cage* "You can fit so many dead mice in this bad boy"

[@dzspdref]

Instantly thought of the movie "The Abyss" when I read the title.

[@waskus]

Me too😉

[@robertweekes5783]

Epic movie !! Directors Cut

[@jameswhite1910]

Because.... we're old. So old.

[@CabbageSandwich]

Im surprised they talk about how they addressed it in the movie more.

[@andybaldman]

You must be over 40.

[@SopwithAviator]

A very interesting and informative vid. But there are other cavities in the body such as sinuses, some not vented that would crush at extreme depths. This science, as it develops will help many outside the diving community. Good show!

[@Dekuinanutshell]

Imagine evolving for millions of years to get out of water only for a group of people to be like "yeah lets go back"

[@ockertoustesizem1234]

some people wanted to return to monke, but others took it a step further and returned to phishe

[@marcom5252]

3:03 diving, the only activity with the risk of "dangerous bubbles"

[@ghoulinthegraveyard399]

Who lives in a pineapple under the sea?

[@FreakyFriday4Phaggs]

@@ghoulinthegraveyard399 *SHIIIIIIIIIIZAAAAAAA!?!*

[@d4v0r_x]

ok maybe liquid breathin nah but i have a new idea: solid breathing

[@johnwirk]

So the air has finally come out if its hole.....are you ready my brother?!!?

[@wesleydecker5857]

Ahh yes, solid oxygen

[@bruhmingo]

You just eat the oxygen

[@bradbrandon2506]

And I'm trying to imagine this comment from a physics standpoint. Nope!

[@Quaxced]

69 likes :) no one wreak it

[@daftmi9hty327]

I've always wondered this because oxygen liquid compounds that can help with "hyper sleep", long term space travel or help with flying jets allowing higher g forces will be interesting to see this tech being worked on and maybe help with further exploration of our own planet

[@Max_Chooch]

I'm thinking a lung full of fluid twice as heavy as water would crush the heart or strain internal tissues under high G maneuvers.

[@EyeoIsis]

Well done and very imofrmative! 👍🏽👍🏽

[@LandonsGrampa]

When I was a young child (7-9), I had a re-occurring dream about falling into water. How I got into the water changed each dream, but in all of them, the result was the same. This was in the early 60's, when the news would sometimes report on this theory of liquid breathing and a child's imagination in how it might happen. To this day, I can vividly remember these dreams as if they actually happened in real life, no different than I remember trips to Disney World, family reunions or my first puppy. I only wish I could be around to see this science come to fruition.

[@gaarasama1719]

Those types of dreams are likely actual experiences from the you that exists in alternate dimensions. You can tell that is what is taking place due to how real they are. I have had some that were really weird.

[@3bydacreekside]

I'd love to hear more

[@courage936]

exact the same as my dreams

[@LandonsGrampa]

@@3bydacreekside There are some really strange ones Garrett. From riding my bike along the Great Barrier Reef, to being able to win swim competitions because I never had to "come up" for air, to working for the military planting underwater mines and bombs, cameras, sonar stations and so much more. All of this is strange to begin with, but what makes it even more baffling, is that I was still this same child 7-9 years old and doing all of this adult stuff.

[@aleksitjvladica.]

@@LandonsGrampa I just love you.

[@Murr1can]

"Can humans breathe liquid" Idk let me try *friggin dies* nah

[@atlascz9245]

@William Leonard well ,all of your oxygen came from the bloodstream of your mother

[@mattz4229]

Any chance of an internet challenge spawning from this?

[@randomperson1714]

@@mattz4229 Tiktok will make it a challenge.

[@momosaku16]

What is dead may never die

[@drockjr]

If I have to endure that much panic drowning, I better not have a catheter, better be able to breathe it safely forever.

[@YVO007]

Well narrated Thank you young lady. Very sincerely delivered education keep up the good work YVO

[@bugluver]

The production on these videos is really good and interesting topics. Keep it up I could see this channel becoming really popular!

[@jonathanyu2987]

I immediately thought of LCL from Neon Genesis Evangelion

[@xeth9074]

Yeah, and you saying that reminds me of the MC being liquified and then birthed out of his flesh mecha...

[@bigbenji500]

Yes

[@mud4309]

Ah, I see. A man of culture.

[@doer105]

Ah, yes. A man of culture indeed.

[@polybius2282]

That's why i'm watching this video lmao

[@godver555]

My theory: What if you didnt have to breath... at all? Lets say you take the 12kg mass liquid you described as being viable. Instead of forcing it in and out we create an artificial heart in the tank area that pumps liquid in and out. This way you can just ''Hold your breath'' and the breathing is done automatically.

[@nyalan8385]

I feel like it would be incredibly hard to overcome the automatic breathing all humans do, especially while sleeping if dives last long enough, and that this would mess things up

[@jonathanodude6660]

@@nyalan8385 the feeling of needing to breathe comes from increasing CO2 concentrations in the body. if you train yourself to go minutes without breathing, doing the same while you had a gas exchanger hooked up to your veins wouldnt feel that different. the thing is, this doesnt solve the pressure issue. you would still need to fill your lungs with a liquid to prevent collapse or perforation at high pressures. in the case of this gas exchanger, you would then also need the same oxygen tank that SCUBA divers carry as well as a way to remove the liquid.

[@grayfaced2628]

Back when I was young, I wondered why couldn't just create a filter that lets in air and let's out air while you in the water. Now that I'm older, some of the reasons is because the air, might be to undense (idk the word for it) to pure anf other stuff. And by air I mean oxygen

[@gaburieruR]

Still too invasive and dangerous. The lungs are fragile, any extra pressure of the apparatus on them and they can burst, also, the lungs dont have the best anatomy for circulation

[@Quantum973]

Might be the first time I purchased a sponsored product from a youtube channel - curiosity stream is pretty cool! There's a really good doc called The Deep Med about saturation divers on the French Riviera

[@panther15zodiacgods47]

Why can't the liquid be slowly introduced into the lungs, as with a fine mist, the particles getting thicker each minute, until the diver has accumulated enough oxygenated liquid to trick the brain into thinking it is not drowning?

[@Chrysaor117]

That’s smart but I’d imagine it would still be extremely uncomfortable and feel it go into your lungs but at some point your gonna have to put the liquid in the mist would take very long

[@nautilume7114]

Genius

[@lopenash]

I imagine it'll make you want to cough Also, you won't be able breathe while it's happening

[@aerojetrocketdyners-2538]

i remember NGE where the pilots of the mechs breathe fluid.

[@gcaruso16985]

"Why does it smell like blood?"

[@nathansealey6270]

I remember a documentary on liquid breathing in the mid 90s, they were experimenting with mice & oxygen enriched water.

[@alexandersonmei]

Yeah then the world literally turned into that liquid

[@cuberancher4479]

ah yes the "mechs" ;)

[@hellelujahh]

@@cuberancher4479 THEY'RE DEFINITELY MECHS DON'T THINK ABOUT IT SHINJI

[@paulpowell4871]

I remember when 3m ran a commercial in 1967 after Inventing PFC's. The Mouse breathing in it was amazing. In the Navy I met with men that did the breathing test. Years later working in defense I worked with PFC's for the other amazing qualities.

[@HmlsDarkOps]

The Abyss was great. That scene has always been stuck in my head.

[@bradthurkle7217]

Yeah same. Fantastic movie.

[@MajorKoenig156]

ugh. just imagine the panic when the liquid gets into your lungs. i'd like to hear more about the human experiments. how did they even persuade that guy to try that? also, i think there is a drowning reflex triggered when liquid goes into your lung, which is the reason why waterboarding torture is so effective.

[@downey2294]

i was once doing exercises for my scuba diving license. one of the exercises requires you to breathe through your breathing apparatus without using goggles. but it just felt like i was drowning. it didn't matter what i did. closing my eyes, being in a pool rather than a lake or being right next to the surface. i just couldn't convince my brain that i was not drowning and i couldn't breathe. despite knowing that i can breathe just fine. and as soon as i put the goggles back on it stopped. the brain wierd.

[@SeanMahoneyfitnessandart]

I've been water boarded... .my respnse: that's it?? all this hype about... that?? .... what a bunch of pussies. I didnt freak out at all and really didn't think it was that bad... its on video

[@MrCaptainWTF]

Another cool use that I learned about from the expanse series books was for high G space travel. It could help humans reach other planets much faster, if other technology allowed for longer high G acceleration.

[@808scum]

Does anyone know if there is actual footage of the navy experiment they mention at about 7:05 anywhere online? I would love to see a human actually breathing liquid

[@dandanthedandan7558]

All I kept thinking about while watching this is Evangelion

[@outofcontext728]

@We All Laugh Down Here it wasn't Netflix

[@founderoftheempire8589]

@@outofcontext728 his face rn is your pfp after saying that

[@gwyn.]

Sees title, “I don’t need sleep I need answers!”

[@ace-kz9zd]

I love that you brought up the sat diving record instead of just the scuba record

[@markgrayson7514]

For sea floor work, given the huge budget, why not empty the lungs and rely on plasmapheresis? That's external blood cleaning, and in this case oxygenating, equipment connected to the femeral artery like you show a scrubber. This allows more processing, and additional blood storage ('donated' and stored in advance), for much wider safety margins and biological data collection for iterative improvements.

[@QuestionEverythingButWHY]

“The important thing is not to stop questioning. Curiosity has its own reason for existing.” ― Albert Einstein

[@stephencumbee845]

Narrator: It's hard to imagine any amount of training that could allow you to overcome the instinct of sheer panic. *shows video of PJs practicing preparing to drown calmly*

[@sammicstar1407]

"What's your job ?" "oh you know, drowning voluntarily myself everyday so i can go a little deeper in the ocean." "sounds fun !"

[@nogoodgod4915]

One of the worst things I have ever experienced is not being able to breath. It has happened a lot of times but the earliest one I can remember is when I was a kid swimming at sea. My sibling decided it would be fun to try and get my head underwater as revenge for splashing them with water. Well they succeeded but what happened was I inhaled water and when I got on the surface I tried to take a breath... nothing. I started panicking, I couldn't breath. I remember gasping for air, hitting myself on the chest trying to get a breath in. People were staring at me but no one helped out. After what felt an eternity for me but was probably about 10 seconds, I was breathing again. The relief I felt was incredible. The most recent time it happened was a week ako when I coughed and flem went up my throat and closed it up, blocking air passage. I couldn't breathe and just started coughing as hard as I can to try to get it out and be able to breathe again. I hate that feeling and knowing that it probably will happen again in the future makes me scared.

[@LivingNihilism]

This sounds to me like it needs to be a non-toxic liquid that can hold oxygen and co2 and also evaporate by itself after a given time to be able to go back to breathing air. Sounds like a tall order.

[@whythefuckdidyoutubewantustodo]

Perfluorocarbons do it decently enough surprisingly

[@jordanw4260]

I've spent my entire life thinking this was already a reality because of The Abyss. Thanks for bursting my bubble.

[@dgmc3650]

Jordan W > yeah, me too!

[@adamgoldenstein1179]

Then you'll be shocked once you find out Godzilla isn't real either. Oops!

[@link1565V2]

"What'd you do at work today." "Oh, I just submerged rats to see how long they took to die. Nothing too interesting."

[@gnutscha]

we do animal testing at our university. Many dog puppies and baby rabbits get killed every day here. animal testing is nothing extra odinary

[@watema3381]

... um so I'm gonna call PETA now

[@zoe7526]

@@watema3381 it's Peta they kill 98% of the animals they adopt. They will kill then too, just without the advance in science.

[@lightuk8958]

@@gnutscha Are you in China?

[@StevenGamesWHC]

Does the action of breathing or to be exact the mechanical part of the contraction and expansion of the lungs need to be done? Because couldn't you insirt a tube to pump in PFC and pump out PFC at a constant rate equivalent to one breath?

[@anonanon3066]

imagine diving for hours like this, then emerging and immediately fainting because you forgot to breath

[@StevenGamesWHC]

imagine an pulse oximeter with an alarm and light but noticeable shock that goes off when your o2 and heart rate drop below a set parameter, these pulse oximeters exist but without the shock obviously.

[@X2yt]

@8:40 actually, this might be the easiest problem to solve. While the thought of consciously drowning is pretty horrible, the switch from breathing air to breathing liquid could be achieved by inducing mild narcosis into the diver. Like, just let him black out for 10-15 minutes, and when he regains consiousness, he'd be breathing liquid, without having to go thrugh whole drowning process. It could ease the transition significantly. Of course, that still leaves other problems mentioned, and also introduces another variable in a way of possible narcosis drug interacting with PFC, but still, with how ridiculously many substances can induce blackout into regular human, a solution could definitely be found.

[@felixcat9318]

I found this video narration to be of the highest standard of accuracy on this relatively obscure subject! How refreshing to hear factually accurate explanations from someone familiar with the topic. As a consequence of the superb narration I am happy to subscribe!

[@mcrump7421]

"I've been breathing water for years" Aqua Man 2019

[@matthewberner9732]

Both Dolphins & Whales decided it wasn’t viable for mammals- aeons ago.

[@WMCS]

Me too.., don’t know what the fuss is about.., especially on a Friday night .,,

[@frankboff1260]

We all breathed liquid at one time

[@goochipoochie]

We are all proud of you -Homelander

[@paulusaurelius5021]

I agree the cetaceans figured it's easier to increase oxygen carrying ability to enable deep long dives. Xenon therapy is shown to increase oxygen carrying capacity. A tolerance to the narcotic effect of Xenon must be overcome first.

[@maryslittlehelpers8163]

It might be interesting to mention that the deepest free dive (breath hold diving, no breathing at all) was 214 meters (702 feet). Because they are not breathing, free divers can avoid most of the complications of tank diving. Which is helpful, because long ascent times are not a possibility when holding your breath! Interestingly though, there is a unique danger involved in the technique. A free diver can become "trapped" below the surface, having enough oxygen in their lungs due to the pressure of the water, but they will lose consciousness during ascent, as the pressure of the depths subsides and their lungs essentially "suck the oxygen out of their blood." It's called "shallow water blackout." As a free diver, I have experienced the feeling of not needing to surface for air (due to the pressure), but I always watch the time to ensure I can surface safely. Cheers!

[@SeanMahoneyfitnessandart]

Drowning is probably my biggest fear... I cant even imagine the panic in the split second when every fiber of your being is screaming in agony to breath.. shakes me to the core

[@bensel1547]

The drowning part can be avoided by sedation when switching. Also, we could start living underwater, so the changes dont need to be done that often. imagine the possibilities of colonizing the sea. Saves on showers as well ;)

[@Moondog-wc4vm]

Not much has changed, but they live underwater.

[@BigDictator5335]

Yeah but now you get trench foot on your whole body

[@bradbrandon2506]

@Honudes Gai dead ass though and this is coming from someone that can spend an entire day in the bath. It's great for decompressing... until you get out and it feels like blades all over your hands and feet.....

[@jairenwasy]

It would allow you to breath a specific liquid, not water...

[@marinamacariogal6101]

Thank you for this video. I knew The Abyss would be mentioned, and the memory of Ed Harris non-drowning scene just made me almost break down again

[@ericswain4177]

In elementary school in the 60s we saw an industry film on this I think it was Dupont, I think the technology and advancements in this today have advanced greatly and are highly classified to this day. Many futuristic technologies have become like this.

[@PixelPi]

Actually you don't technically need to breath, one could use an extracorporeal membrane oxygenation ("ECMO") machine to oxygenation the blood directly. Although as you stated in the video, respiratory acidosis would probably still be a problem.

[@tagmaster101]

After going through liquid breathing training, getting waterboarded is like a walk in the park

[@SeanMahoneyfitnessandart]

I've been water boarded.... honestly ... it didn't bother me.. which is weird because drowning is my biggest fear... but idk... when it was over all I could think was.... "that's it?? That's what all this fuss is about.... bunch of freaking pussies." And I'm not a tough guy by any means

[@inertiaking1]

​@@SeanMahoneyfitnessandartwtf were you doing for someone to want to waterboard you

[@SeanMahoneyfitnessandart]

@melonman4037 lol... um... I could tell you... but... 1... you probably wouldn't believe me... and 2... its NSFW 18+... OK fine.. I was doing a shoot for an extreme BDSM adult film and that was part of it ... but we didn't fake anything.. it was 100% real. But of course in the back of my mind I knew my life wasn't really in danger... which probably helped... Don't get me wrong tho.. its still not a pleasant experience by any means and wouldn't want to do it again... but calling it international war crime torture.... I dont think so... not compared to the rack 🤣

[@1Deejay7]

I once held my breath in the bath tub. Opened my eyes under water. Yeah, I'm pretty cool

[@alenvolo3525]

Right this way sir

[@jacopobalia31]

I'd like to be that brave

[@pprav987]

Opening your eyes underwater stings

[@Thicbladi]

Tatertots Yumyum only in certain water

[@theolodger]

@@pprav987 not that much, its only bad in salt water and stuff like that. under water in a pool with chlorinated water is actually fine, though seeing is blurry

[@devinarney]

This is so cool. I wonder if we will ever have diver breathing liquids deep under the ocean.

[@user-up8jx3mt6j]

The experience of drowning sets in some kind of panic response I really don't think you can avoid. I had this experience as a kid. I remember going down and coming back up two, three times, I really don't remember. But it's the kind of thing you'll never forget, that is, if you get help. Maybe it's some kind of unconscious realization that you are dying, I don't know. The whole scenario is too much typing. But it's the end of it that really sticks in my mind anyway. On my last look above the water line, there, at a distance, was a life guard standing atop one of those tall chairs. I so vividly remember seeing her standing up there and looking straight at me. The next fraction of a second, I saw her diving down into the water. I don't remember anything until the moment she was pulling me to the pool's edge. It's still unnerving to this day thinking about how close I was to dying. Just that one thing, that girl watching from that chair. If that one girl had not been there, I would certainly have been on the bottom. It's kinda weird, that many years later, I in-turn did the very same thing, only it was me up on the chair so to speak. I had left one pool to swim in a much larger and deeper one. A youngster I had befriended had followed me; I had no idea that he had tagged along. Standing alongside the pool with my back to it, suddenly this woman started screaming her head off, - " Save him - save him - somebody save him ". Scared the hell out of me. There wasn't anyone near. I dove in and took hold of him. I do remember towing him to safety exactly like that lifeguard had saved me, - and I swear, I was just about the very same age as this boy was. Maybe a little spooky. By the time I had gotten the little guy to the edge, I was both exhausted and a nervous wreck. Really crazy as it sounds, I was later so upset with myself. By the time I'd reached the edge, I hadn't the strength to hoist him out; really nuts I guess, cause how am I going to 'hoist' him up and out when I am down in the water with him ? Long-story-short, both mind and body both have more sense than you just deciding to do whatever the hell you want, like breathing liquid when a million years of developmental biology has out-fitted you to breathe air - not liquid ! 'Drowning', - you don't want to be on either end of the experience, believe me; they both are exhausting, - you'll end-up feeling like you've swam the English channel with a suit of armor on.

[@jacktorborg9862]

Man, this channel and real engineering have to be the coolest channels on KZbin.

[@devon-tyrelwatson7283]

Isaac Arthur and Joe Scott's pretty cool too.

[@aSinisterKiid]

I have dreamed of doing this my entire life, ever since seeing Abyss. I am fascinated with this theory and truly hope during my lifetime it becomes a reality. I believe there could be some unknown spiritual breakthrough we could discover during the process of trying to convince your body to breathe liquid. In theory, your brain thinks it is dying, so you would be experiencing those final moments just like anyone else who is dying. But you wouldn't die. So all the chemicals released in that process could finally be examined and talked about. You could explain what you felt and experienced because you would be alive after the experience. I honestly think this could be a monumental step in spiritual growth or enlightenment that we have yet to discover. Deep in my soul I feel a need to experience this feeling.

[@shinazu_k]

Good to know I'm not the only one who thinks so. Even though I never thought of something spiritual and just wanted to try out the feeling to have liquids in my lungs without drowning lol

[@cccc285]

When your lungs fill up with liquid, it doesn't hurt like you think it would. When your lungs fill up you lungs just feel full without any pain. Its quite peaceful really ...

[@00xanawolf00]

Adding a temporary anesthesia phase might be the way to go for divers using this liquid breathing method. Perhaps the intravenous access to the diver’s veins (the “gill”) could be used to administer a drug cocktail that would cause temporary amnesia (Versed, Ketamine, etc.) along with a dose of Diazepam to essentially sedate the diver prior to filling the helmet with the PFC solution. This might reduce or remove the psychological and physiological trauma of forced or self drowning. Of course, other drugs would then be needed to counter the sedatives so the diver could begin their dive alert and focused. The forced or self drowning experience in the oxygen rich PFC solution might only be reserved for emergency escapes from submarines, etc., and while horrifying to experience, would be infinitely preferable to drowning in seawater and subsequent death.

[@ashket-us4xu]

**Cruel Angel's Thesis starts playing**

[@MigWith]

i was thinking the same

[@RyleyStorm]

Followed by kom susser tod

[@dannydetonator]

Who's that?

[@shredder_64]

@@dannydetonator search Neon Genesis Evangelion it is on Netflix

[@wifipimp8244]

Legit thought of LCL too 😂🥴