I like to think you (Destin) were on your main channel when you saw this but decided to swap over to your second channel to comment, just for the "second channel-ception".
@wobblysauce2 жыл бұрын
2nd channel got their back.
@SmarterEveryDay22 жыл бұрын
@@reububble nope sorry, was logged in on SED2
@jollyjoystick16962 жыл бұрын
@@SmarterEveryDay2 Hi Destin nice to meet you on a comment section 😄
@eidolonish2 жыл бұрын
Takeaway: Derek is too famous, Matt is too pedantic, and Steve Mould is the nicest man on the planet.
@odesseus Жыл бұрын
This made me smile
@jonathanl85382 жыл бұрын
Matt should write a book on maths errors. … Oh wait.
@cossaertom2 жыл бұрын
Did you mean to say Matt errors?
@thefountainpendesk2 жыл бұрын
@@cossaertom That would seem like a Parker square of an error
@angelusmorningstar2 жыл бұрын
@@cossaertom that would just be a book of spelling errors 😂
@moonliteX2 жыл бұрын
people know what they do.
@marijnl2 жыл бұрын
@@cossaertom That would be more of an encyclopedia then
@frankjohnson1232 жыл бұрын
Absolutely destroyed him with the 8 -> 7 correction, Matt’s still got it! Nice video
@IqweoR2 жыл бұрын
That got me laughing so hard XD
@goatmeal52412 жыл бұрын
We'll call it a draw!
@concinnity96762 жыл бұрын
That was funny, but I think in just a teasing manner, like "two can play at this corrections game." I think they both know Veritasium was right on that; because, when one only shows one significant digit, rounding it is the best, accepted way. It's the power of ten that is important. I prefer scientific notation, "7.8 E-31".
@thargy2 жыл бұрын
Yeah, it’s “funny” because he know that it’s a really weak “correction”
@Hugh.Manatee2 жыл бұрын
I think my friend @@concinnity9676 meant 7.9 * 10⁻³¹ I mean if you're going to show 2 significant numbers rounding is the best accepted way 😉
@_notch2 жыл бұрын
Now THAT is a delightfully spiteful counter correction! I strongly approve.
@Twosies202 жыл бұрын
No checkmark? 🙃
@jerry37902 жыл бұрын
Notch?
@rws5312 жыл бұрын
@@Twosies20 because it’s not Notch
@PiercingSight2 жыл бұрын
@@rws531 It is. That's his youtube channel. He's posted some of his other programming experiments there.
@bknesheim2 жыл бұрын
Could be used as the definition of nit-picking.
@bkucenski2 жыл бұрын
It's always nice when Matt helps out the little channels with some extra sound bites for their videos.
@der.Schtefan2 жыл бұрын
Glad that you accepted the reverse-Derek so gracefully without having the need to find a flaw.
@EntropicTroponin2 жыл бұрын
I found Derek's call-out of the mistake quite arrogant. Matt's jab at the digit is humourous in comparison
@der.Schtefan2 жыл бұрын
@Squant Like you just now?
@jeremiahsmith84992 жыл бұрын
@@EntropicTroponin It's arrogant? What? He was pursuing the truth, nothing more, nothing less. You'd be a fool to think there was any bad blood or ill intent in that correction.
@drebk2 жыл бұрын
🤣🤣😆😆
@drebk2 жыл бұрын
@@jeremiahsmith8499 the ol fake beef between YT content creators. Never gets old
@storyspren2 жыл бұрын
Ah yes, the Parker Correction, which looks and sounds like a rounding error is about to be pointed out, but which then points out that the rounding is actually correct but it needs to be known that this number has been rounded :D
@strandedinparadise82022 жыл бұрын
Parker Correction gets my vote!
@bralex66692 жыл бұрын
I *immediately* though of a montage similar to that of the Parker Square. We need Brady on this.
@fuseteam2 жыл бұрын
derek now got parkered xD
@Anytus20072 жыл бұрын
I also thought of "Parker Correction" but do we want to save that for when you attempt to correct someone else's mistake, and your correction is *almost* correct, but not quite?
@storyspren2 жыл бұрын
@@Anytus2007 That's already called "incorrecting" someone in my lexicon so I didn't think about that :P But since Matt was fully aware of the almost-perfect nature of the square when making it, I'd say almost correcting someone but not quite correcting them on purpose is closer to the intent
@trigonzobob2 жыл бұрын
You aren't exaggerating. You're underestimating. I showed that video to _both_ of my dogs.
@Fiyaaaahh2 жыл бұрын
Congrats on spotting the erroneous 8 Matt. How does it feel to be the Dereker instead of the Derekee?
@mrpie30552 жыл бұрын
Amazing
@NeatNit2 жыл бұрын
In the off-chance this isn't obvious - ignore that spam message...
@Soken502 жыл бұрын
@@NeatNit No, don't ignore it, report it! With prejudice !!
@NeatNit2 жыл бұрын
@@Soken50 Oh, I do, but that doesn't actually do anything! Comment scams don't lose Google any money so they don't bother to do anything about them.
@abhishekpatil57682 жыл бұрын
@@Soken50 ueah
@aj762572 жыл бұрын
I’ve always appreciated the corrections section in the descriptions of your videos. It’s a good philosophy towards mistakes
@3_up_moon2 жыл бұрын
The news used to have to do this as well.
@D33r_Hunt3r_2 жыл бұрын
They do... 3 days later on page 47, after everyone has moved on and in a place no one sees.
@peterw90062 жыл бұрын
Where is it here?
@davecorry77232 жыл бұрын
That was great. I've never laughed harder at a 7 after 30 zeros.
@SimonDonkers2 жыл бұрын
Derek being loose on the language and digits, does that mean he should get reverse-reverse-Dereked?
@chitlitlah2 жыл бұрын
Derek played the reverse card on Matt and Matt played one right back with his "Your calculation is 1% off." But Derek had nothing but a wild card left so he won anyway.
@iidoyila2 жыл бұрын
didn't matt get matted anyway , dereking was a different thing
2 жыл бұрын
Does reverse-reverse-Dereked cancels out to just Dereked?
@madmaveric2 жыл бұрын
would that not be reverse-Dereked-reversed (Why do I feel like Sheldon cooper is about to appear and correct us all :D).
@Qermaq2 жыл бұрын
@@madmaveric It's Dereks all the way down.
@MedlifeCrisis2 жыл бұрын
Proud to be one of those [all people in the world] who whatsapped you Derek’s video hehehe
@proloycodes2 жыл бұрын
can you send me his number not like i'll spam him or anything, really
Drama in the maths community is so wholesome compared to the rest of youtube, lol
@kieronsingh30072 жыл бұрын
This feels like it has the potential to become the maths analogue of Uncle Roger and Jamie Oliver
@dekippiesip2 жыл бұрын
That's just the nature of maths. There is no back and forth, if you're proven wrong it is definitive. There are no shades of grey or 'different perspectives' or 'a context' to consider. Just the plain cold truth.
@pshtwhoneedsaname2 жыл бұрын
idk people got pretty fired up about the -1/12 thing
@hughcaldwell10342 жыл бұрын
@@dekippiesip So long as you can agree on axioms and definitions, which isn't as common as people might think.
@MrFram2 жыл бұрын
flammablemath tho
@alanwilson1752 жыл бұрын
I congratulate Matt on his sincerity. Errors occur all the time, in science and math, and we just have to recognize them later and correct the mistake.
@dan339dan2 жыл бұрын
4:47 Ah yes. The Parker Square we so fondly remember Matt of.
@jehanr2 жыл бұрын
Using the end of a 2nd channel video for a correction on someone else's main channel video is an amazing move.
@JaxsonGalaxy2 жыл бұрын
This reaffirms my sneaky suspicion that mathematicians are all petty dorks. I thank you for your service.
@josephpowell60092 жыл бұрын
me and my 99 homies was about to bust out of the joint with the random method. thank you for correcting that 8 to a 7. dereck was selling us false hope !
@adivp72 жыл бұрын
Love that you're having fun with editing, Matt
@jeffreybernath66272 жыл бұрын
The ending with the "correction" for Derek's video was great fun! I lol'd!
@ceruleanwake88762 жыл бұрын
I love watching these channels. Not only for the education. The interest the intrigue the problem solving the ingenious creators but the drama the drama is the best. I love you guys. You always do a great job
@PinataOblongata2 жыл бұрын
Didn't bother clicking Veritasium's video and din't even know you had a second channel, but I clicked THIS video. "OOOH!" I said to myself, "INTERNET MATHS CALL-OUT DRAMA!" Little did I realise I would not be able to concentrate on a word that was said due to being faced with one of the coolest-looking shirts I have seen in a while. I bet there's even some maths behind it!
@Ditocoaf2 жыл бұрын
Yeah, I always wish I knew where Matt gets his shirts.
@fylosofer2 жыл бұрын
Beautiful. I was expecting and hoping for a response video. Matt, your humor, wit and congenial attitude always put a smile on my face. Thanks for being you.
@jmatya2 жыл бұрын
Ah that last digit burn 🔥. Glad all of you form such a good company and interact with each other, that such topics are always fun to watch and laugh about in a positive way ❤️
@TheMartijnh732 жыл бұрын
I totally agree with you here.. that positive note is what we all should follow in my opinion. When I watched Derek mentioning Matt, I felt that as positive feedback and free advertisement immediately. I love watching both streams, Derek for his ways of bringing various messages, and Matt for his awesome way of explaining math as an expert. I'll continue watching both ;)
@callummacalister2 жыл бұрын
"Eventually, everyone in the world will be Reverse-Dereked" -Andy Warhol, probably.
@cornishcat112 жыл бұрын
fantastic comment
@bluetone112 жыл бұрын
Both Derek and Matt ( and of course Grant Sanderson + the guys at numberphile etc ) are beacons of mathematical teaching . When watching the video where Derek takes a $10,000 bet ( re: moving faster than the speed of the wind ) , he makes the statement that if he is wrong in his calculations he would want to know why .This is a very good attitude to have . Historically there has always been great rivalry in the field of mathematics . So well done Matt ( and Derek ) for upholding this tradition . Thankyou both for making such brilliant videos .
@lrj30002 жыл бұрын
That was way saltier that I ever expected! Waiting for more from this second channel
@niezbo2 жыл бұрын
How cool is this, watching my fav YT creators interacting with each other is such a awesome way! Love it!
@jesseparrish19932 жыл бұрын
I do hope that Derek learns from this and is more cautious in the future. I'm lucky my daughter wasn't with me when that 8 came on screen but other parents may not be so lucky.
@Abstraxtudio2 жыл бұрын
Even though I never seen your channel and only found this one from Veritasium, I love the friendly rivalry that's going on and can't help but respect it.
@kundogb2 жыл бұрын
Hahahah, was expecting this video to come and you did not disappoint XD
@The7thgiver Жыл бұрын
“Aaaand steve is gone” RIP steve you will be missed
@donaldasayers2 жыл бұрын
The trouble with Derekassium is that he is a little bit of a troll. He is often right, but he frames the truth with limited boundary conditions to give people room to argue. His Light lighting up at the end of a very long loop of wire being a case in point, the original video was correct, but framed in a way that invited disagreement.
@Pulsar772 жыл бұрын
He loves clickbait, he even admits it. So he says something controversial, which will spark discussion, which gives him more views and an excuse to make a follow-up video. All for that sweet cash. Honestly, I find him more and more annoying.
@brittoncooper12512 жыл бұрын
Honestly, it's one of the reasons I like his channel. The deep dives other creators make while trying to correct, or confirm, his videos end up providing excellent explanations of otherwise difficult topics and different approaches to problem solving. Plus, it shows in pseudo real-time the way science actually works.
@qwertyasdf662 жыл бұрын
@@Pulsar77 That's why I unsubbed from him a while ago.
@noellesears102 жыл бұрын
@@Pulsar77 its annoying if you go into his videos expecting a scientist or a mathematician or a logician. veritasium is a performance intended to reach more people, because being purely scientific is more interesting to fewer people. inviting discussion allows those smaller and more niche youtubers to reach more people through his pop-science channel
@skully22122 жыл бұрын
I don't think he was correct at all and the only way he was able to claim to have been right is to have framed the question as vauge as he could, and then retconned in the actual answer after he was called out for an incorrect video that wasn't even convincing. Knowing that there's a big difference between the amount of power the light gets instantly and after a second, the only way to salvage it is to make assumptions not presented in the original video. Assuming that the light bulb isn't dimmable, which is what most people think of when there's a light bulb in a problem, then he would have been totally wrong. Veritasium has always been obnoxious and I've never felt like I've enjoyed learning anything from that channel.
@jeff__w2 жыл бұрын
3:02 So *Matt* is wearing the identical shirt in his earlier video as in this one. So I surmise that that is his “100 prisoners problem” shirt. (He’s not like Tom Scott, is he?)
@lolzold42 жыл бұрын
Nice spot!
@jeff__w2 жыл бұрын
@@lolzold4 Thanks!
@ohnonomorenames2 жыл бұрын
One Australian respectfully snipped another Australian so the snipped Australian fired back with an equally respectful snip. What is important to remember is that they are both enjoying a lovely summer while there homeland is in the depths of winter (although Australian winters aren't really that bad). It's almost like they are both fine with each others videos and that the reference was nothing more than a back handed complement of the others channel.
@ThisMoose2 жыл бұрын
Technically one is Canadian, but yes
@honorarymancunian74332 жыл бұрын
Meh all commonwealth anyway
@lawrymccarthy32922 жыл бұрын
@@ThisMoose But lived in Australia long enough to qualify.
@vagga2u142 жыл бұрын
Our winters aren't that bad... *cries in every place I visit on the east coast of Australia getting several hundred millimetres of rain and flooding*
@PRCDwtf2 жыл бұрын
Pretty sure Matt is British
@wallywutsizface63462 жыл бұрын
I understood the problem from your video, but Derek definitely answered a satisfying question. The ultimate question of the problem is “how many scramblings result in their being no loops longer than 50”? Your video was sort of hand-wavy and just said we brute forced the answer with computers, whereas Derek explained how you could figure it out on just a whiteboard. Not that I don’t love both your videos, but I appreciated that aspect of his video
@aslemos20092 жыл бұрын
Man, you've fought for that 7. You've scrutinized every pixel of Derek's video, and all you got was that lousy 7. Still, formally speaking, that does even things out. Well done.
@stephenkamenar2 жыл бұрын
that's as big of a mistake as saying pi = 3.142
@aslemos20092 жыл бұрын
@@stephenkamenar Yes, and we will not be silenced!
@demoman1596sh2 жыл бұрын
@@stephenkamenar Well, not exactly. The mistake of saying pi = 3.142 is orders of magnitude bigger than Derek's mistake. Will I state exactly how many orders of magnitude? No, because then I might be making an even bigger mistake. 😛
@varunachar872 жыл бұрын
He could've found much more, but maybe he was trying to be nice. Derek, as he increasingly tends to do these days, muddled up a lot of details in his explanation. He gave the right answers, but for poorly communicated reasons. For example, the two copies of 100! that cancel each other out (one in the numerator and the other in the denominator) have very different meanings, which is a subtlety he should have better clarified. And worse, he did the calculation for a loop containing all of the objects, and then nonchalantly stated that the same works for any subset of the objects. Let alone mentioning that it works only for more than half of the total, it is poor communication even to take his edge case calculation and apply it to the interior cases without inspection.
@talastra2 жыл бұрын
Off by one errors can be super disastrous.
@glassman61912 жыл бұрын
Matt, in general I love Derek's videos, but you are the master. Wonderful 'thought I point that out' and 'it all cancels out', 'move on with or lives'. Koala stamp! Well done! Love this!
@bartjennings2 жыл бұрын
I think we all know that ACTUALLY, Matt here has been being Parker-Dereked
@Rymunin2 жыл бұрын
Thanks for putting a smile on my face during the most thursday-like monday i have ever had
@davidwood87302 жыл бұрын
Derek gets "dereked" a lot. His video on sailing faster that the wind and his one on the propagation of electricity in a wire got a lot of responses
@timbeaton50452 жыл бұрын
Not to mention the flurry of videos around Dirk (of Veriistablium* fame) and his video explaining the Poynting Vector. *Acknowledgments to CGP and Brady and their H.I. podcasts
@GamezGuru12 жыл бұрын
except there was nothing wrong with the sailing video, people just couldn't accept it...
@jemandanderes70752 жыл бұрын
Isn't getting dereked when you are in the process of creating a video but someone (often times Derek) gets a video on the same topic out earlier, so you make your original video and in that point out a little mistake?
@zzzyyyxxx2 жыл бұрын
Yet he was correct in every one of them, even doing thorough experiments to show those that didn't accept them that he was indeed right.
@Vexas3452 жыл бұрын
@@GamezGuru1 Nothing wrong with the electricity one either but EEs are still raging mad about it lol
@yahccs12 жыл бұрын
Very good response to a video-response to your previous video. It's nice you managed to fit in some humour at the end! I saw Veritasium's video the other day too. I think reaction videos to other people's videos seem to come up more (on the suggested video list) as if they are more click-baity than usual! Maybe because we all like errors to be spotted... but are not so keen on having our own errors pointed out! Hopefully no one will expose someone else's errors in public in an embarrassing or humiliating way. It seems so many science/maths communicators on KZbin all know each other so are all friends and sometimes friendly rivals!
@ptousig2 жыл бұрын
You know you've made it as an educational KZbinr when you find yourself in a feud with Derek.
@TheNasaDude2 жыл бұрын
The only man who can even thimgs out, by pointing out that the correct number is odd and not even
@TheOriginalJAX2 жыл бұрын
I watched the first 6 minutes of the video then went to bed and came back to it after getting back up, Glad I watched the very end bit. Most important bit of all I do approve good Professor. I do agree this should be about lets say keeping score so once again good job.
@Brunoenribeiro2 жыл бұрын
The guy is smart, funny, AND humble. You're awesome Matt
@lukaleroux4792 жыл бұрын
I don't know why, but the bit about first digit after those 30 zeros being a 7 and not an 8, even though it does round to 8, gave me a genuine laugh. Has been ages since I had one it feels. I'm still laughing even ad I write this and I'm not sure why xD
@Mosethyoth2 жыл бұрын
For me it's that this number is unperceivably small. The smallest correction I've ever heard of. 1.114E−32 to be precise. It get's very close to the smallest physically reasonable unit of length we have which is the Planck length which is 1.6E-35 meters. (apparently attempting to measure any shorter distance would create a black hole)
@abdurrahmanhabibie61532 жыл бұрын
That correction is absolutely the best counter of the year
@philipbyrnes75012 жыл бұрын
Good onya Matt, I’m proud to be represented by two great Aussies like you and Derrick lol. Been watching you both for a few years now and am so grateful that you’ve both become the men of science that you have and for the great teaches you both are. Thanks mate, a very enjoyable rebuttal ,’)
@onwardandupward23452 жыл бұрын
is he not canadian?
@onwardandupward23452 жыл бұрын
...Derek that is..
@Crazy_Diamond_75 Жыл бұрын
@@onwardandupward2345 Born in Australia, raised in Canada. His parents have pretty thick Aussie accents.
@rishbhardwaj14312 жыл бұрын
Well done! Now that's how one takes an embarrassing situation, owns up to it, and comes back with something funny to say. Wholesome!
@boas_2 жыл бұрын
Yeah I also spotted that mistake because I was following along doing all the calculations
@marcusaurelius49 Жыл бұрын
I thought I was reverse-Dereked once, but it turns out I was just constipated.
@qzbnyv2 жыл бұрын
I just like to imagine Dirk searching through your videos for comments where you’ve been corrected by someone on a point in material way, which then gets turned into the next Veritasium video.
@diggoran2 жыл бұрын
HI 👋 That does seem like something that Dirk from Veristablium would do…
@qzbnyv2 жыл бұрын
@@diggoran If you sign yourself up to the OpenAI beta, you can use their Playground to have the GPT3 algorithm list a stack of Dirk from Veristablium variations. Just give it a few you knew in a list, but also include “Dr”, “Derek”, “Muller” and “Dirk” in the restricted words list so that it doesn’t start giving you a bunch of repeats that don’t match the pattern.
@Paulsinke2 жыл бұрын
Acknowledging and exploring your own mistakes is the ultimate expression of real scientific virtue, you have shown the depths of your wisdom and converted me to a lifelong fan. Cheers!
@baerlauchstal2 жыл бұрын
Nice one, Matt; just the right tone, if I may say so! I also heard Derek as saying the probability of a random perm having a maximal cycle order of r was 1/r, and was struck by the fact that that clearly wasn't what his bar chart showed for r
@rafael23502 жыл бұрын
I'm just amazed by the attention to details on Matt's videos
@trigonzobob2 жыл бұрын
If he just had the same attention to accuracy :)
@MayorMcC6662 жыл бұрын
DEREK OWNED BY MATHS AND LOGIC
@michaelcrosby77152 жыл бұрын
That Parker Square is going to be with you forever lol
2 жыл бұрын
Your approach to science and being humble about it to be highlighted, totally fantastic! New subscriber here at least because we need more people in science open to correction, like you!
@bluemalamute2 жыл бұрын
thanks for the laugh and always making it fun. Matt is a great champion for giving it a go--can't win if you don't play/ get anywhere if you don't try--and being diligent too/ learn from the mistakes.
@jasertio2 жыл бұрын
Derek got Parker-Squared
@kennethkoers50332 жыл бұрын
The commitment to wearing the same shirt, as you did in your "Dereked" segment. Perfect.
@PuchMaxi2 жыл бұрын
Good thing you kept the shirt, for continuity and all. Love the M.C. Escher artwork on your wall.
@3Ppaatt2 жыл бұрын
I love how he says "Now that all balances out" while we're all looking at the view count on this video and "balancing" it with a Veritasium main channel video...
@henrygreen20962 жыл бұрын
That’s one of the reasons I went for STEM. It’s collaborative and I, myself, or other colleagues will help fix or catch mistakes in the overall goal of finding a solution. Great video as always Matt.
@alisioardiona7272 жыл бұрын
Make sure you're the last the spot a mistake to flex your intelect.
@DreamFreeFPV2 жыл бұрын
this whole video is just LOL. i just love the personality you bring to the table...
@eashanshenai49802 жыл бұрын
Refresh the page guys, the audio is there.
@thequixoticman2 жыл бұрын
I cannot express how much joy the ending of this video brought me.
@nekogod2 жыл бұрын
I like that you (I'm certain it's deliberate) are wearing the same shirt in both videos!
@howkre8ive2 жыл бұрын
Mistakes or not, I always enjoy your enthusiasm for maths! Keep it up!
@petermoore95042 жыл бұрын
Hi Matt, here's a quick idea for you. Emma Raducanu has been incorrectly stated as being 5' 7" when she is 1.75m tall ie 5.7 feet (5'9"). This is on the WTA website and was shown on the BBC Wimbledon coverage. Is it time to go metric completely?
@guest_informant2 жыл бұрын
This is brilliant I hope Matt sees it.
@xpqr123452 жыл бұрын
Regarding going metric: YES! It has been time to do that for decades!
@guest_informant2 жыл бұрын
What happens to players who are 5' 11". Are they converted to 5.11 ft (5' 1" - rounded) :-) PS Going metric completely. Metric time and the French Revolution is worth reading about.
@petermoore95042 жыл бұрын
It's not just the WTA, Barney Ronay wrote an article for the Guardian on 29th June 2022 where he states Emma has a disadvantage at 5'7". Perpetuating the error.
@baksatibi2 жыл бұрын
Regarding going metric, imperial unit countries could adopt the SI prefixes without completely giving up on the imperial units. Just pick one unit for each dimension (length, mass, volume, etc.) and start using the SI prefixes with it. For example you can have nanofeet, microfeet, millifeet, centifeet, decifeet, feet, decafeet, hectofeet, kilofeet, megafeet, etc. This would have the advantage that citizens don't have to suddenly get used to units they rarely (if ever) used in their lives, but gets rid of the non-decimal unit conversions which is probably the source of most errors when using imperial units. This also makes it easier to transition to the metric units because then only one conversion factor is needed per dimension.
@rambler2092 жыл бұрын
My first thought on seeing the title of his video the other day was "I wonder if that's the prisoner problem from Stand Up Maths."
@azlandpilotcar44502 жыл бұрын
If your friend Matthew checked your check, hasn't Derek been double-Matted?
@PrimalBeard2 жыл бұрын
Strict definition. I laughed so hard at the end. Great video!
@thelivetoad2 жыл бұрын
Actually I thought that the only interesting thing in his video was the statement that the warden can't beat this strategy merely by ensuring that his chosen permutation has a long cycle. Because, he says, the prisoners can simply modify the strategy by doctoring the permutation -- I think he says "add 5" or something. That's genuinely interesting and would merit amplification.
@AssemblyWizard2 жыл бұрын
Sure but what if my permutation is shifting all cards by one? (in box 1 there's card number 2, etc). This is a loop of length 100, and just by adding 5 (or any other offset except 99) the loop still exists. "This is my friend Derek, and what I think he meant to say is, all the prisoners need to remember a whole new permutation, and compose it with the given permutation" If they use some generic rule instead of another permutation, the malicious guard can construct the permutation to have big loops after the rule. If the guard doesn't know the offset they're planning to add then the 100-loop won't work, but probably there's a permutation which foils every addition.
@thelivetoad2 жыл бұрын
@@AssemblyWizard But it may not be a single loop. Think of a loop 1->2->3->4->1 of length 4. I am not sure what Derek meant by "shift by 5" but let's imagine a "shift by 1" here. Prisoner 1 goes to box one, opens it, sees 2, and shifts by 1: result 3. They then go to box 3, open it, sees 4, shifts by 1 (cyclically): result 1. So we get 1->3->1. But crucially this strategy never opens the liberating box 4. So I am confused by what he might have meant by this. You can easily doctor a permutation (in this case in effect squaring it) to make a permutation with shorter cycles (in this case 2 of length 2 rather than 1 of length 4) but you need a way to do this and lead each prisoner to the box with their number in it. You could instead "shift by 1" by first opening box 2, seeing 3; then opening box 4 and see 1. As long as the number of prisoners isn't prime this would always reduce the length. But there are other modifications possible. So there is lots of latitude for investigating this as a game.
@bennettpalmer17412 жыл бұрын
@@thelivetoad The "add 1" is adding 1 to each box. The visual given was the first prisoner physically relabeling each box, then using the original strategy. So, the prisoner would first check box "1" (formerly known as box 100), then if that box contained a 6, he'd move on to box "6" (previously known as box 5), etc. This effectively randomizes the contents of each box, undoing the warden's sabotage.
@thelivetoad2 жыл бұрын
@@bennettpalmer1741 Well, any permutation of the labels will only result in the same cycle structure as before, so it cannot undo the warden's counterstrategy. Again, the main issue is "is there a cycle of length greater than 1/2 the number of prisoners". If yes then any relabeling maintains that reality. Some prisoner will be in that cycle. One of the ways of implementing the "shift by x" strategy (the second one I described above) would in effect traverse a positive power of the permutation. If prisoner y's number is in a cycle of length L then a power of that by a divisor D of L will reduce it to D cycles of lengths L/D. Of course you don't know the length of the cycle that contains your number and at any rate you have to make sure to implement such a strategy so that your number is in the cycle you end up traversing. (See my first example above.) The beauty of the original strategy was that by starting at the box labeled with your number you'd traverse a cycle guaranteed to contain the box with your number in it. Remember, the warden will not release you if you al find a box with a relabeled version of your numbers -- you have to find the box with your number in it as put there by the warden.
@bennettpalmer17412 жыл бұрын
@@thelivetoad Let's just create a hypothetical scenario. Box 1->3 Box 2 ->4 Box 3->1 Box 4->5 Box 5->2. We have two cycles, 1-3-1, and 2-4-5-2. If we add 1 to all the box totals, we get Box (5+1=)1->2 Box (1+1=)2->3 Box (2+1=)3->4 Box (3+1=)4->1 Box (4+1=)5->5. We have 1-2-3-4-1 and 5-5. The cycle structure has changed.
@Aleblanco19872 жыл бұрын
I love how you all get along very well.
@eviltreechop2 жыл бұрын
What made me click the like button was the eagle scream logo wipe. Incase you're looking for feedback
@ro_yo_mi2 жыл бұрын
"The Parker Zone" the area were corrections are parked.
@MC---2 жыл бұрын
That is so funny that you science communicators have a term for whenever Derek beats you out to posting a video or now reverse-dereked. Reverse-Dereked has lead me to finding some really great channels. I don't know why KZbin hasn't thrown your videos in my feed sooner. I found Nick Lucid's Science Asylum because of the whole misconceptions of electricity saga. This also lead me to Medhi's Electroboom and then Steven Mould I found Dr Becky channel through a similar thing with the release of the images of the Black Hole at the center of our galaxy. Its almost as if KZbin's algorithm should have a Derek filter.
@DehimVerveen2 жыл бұрын
Have you found AlphaPhoenix as well? It's a great channel, I highly recommend it!
@triffid0hunter2 жыл бұрын
Also check Tech Ingredients and Applied Science for more practical science/engineering content ;)
@kindlin2 жыл бұрын
@@triffid0hunter Practical Engineer is really good, from a civil engineer perspective. I legit learn things watching his channel, and his more recent (and relatively new to his channel) current events videos have been fascinating.
@RickSjoerds2 жыл бұрын
Haha. Loved it! Stylish answer! Suits you! I like it when channels I follow pop-up with some things/(re-)directs from some other channels I follow.
@Yupppi2 жыл бұрын
There's something cool about being reverse-dereked, like your face pops on his channel "this guy was so ahead and interesting that I had to make a video about his thing. There's a little catch to it when I pondered about it". Also probably great continuation to the saga of reaching higher KZbin numbers. Also you got to point out a mistake in it, now you're set to launch a chain of videos like Mehdi vs Derek or Mehdi vs Steve Mould or Mehdi vs the world.
@chronophagocytosis2 жыл бұрын
LOL, that thing about the digit 8 was just absolutely hilarious! You just had to squeeze in a correction, no matter how minor.
@iminni34592 жыл бұрын
Derek got dereked.
@CDCI32 жыл бұрын
Reverse-Dereked!
@MelindaGreen2 жыл бұрын
I'm just glad Derek isn't a cowgirl.
@transcendentape2 жыл бұрын
I always like seeing new videos from Dirk of Veratablium.
@jmacd88172 жыл бұрын
It's "VeriSTABlium" 😉😇 Anyhow, hi "fellow Tim"!
@Wordsnwood2 жыл бұрын
Take your upvote, Tim... ;-)
@Anna-ip8ub2 жыл бұрын
I miss the Timfoolery
@timbeaton50452 жыл бұрын
@@jmacd8817 Hi back, to you! And I'm a bassist, too.
@GoldenMinotaur2 жыл бұрын
Haha, well handled. Subbed on both your channels now instead of a suggested only viewer
@Aciek252 жыл бұрын
I remember watching full footage of matt playing dice and calculating some coprime numbers. And I spotted a mistake in it. I wrote a comment with that mistake, tagged it and checked if anyone else has found it earlier. And Matt hasn't tagged me in a correction:( Edit. With Matt I can watch tee getting cold and I find it interesting.
@dmuntz2 жыл бұрын
I'm reporting that Matt failing to tag you in a correction needs correcting, and therefore I expect to be tagged in a correction. I await my reward.
@Scoots19942 жыл бұрын
I didn't go watch your video because I remembered your video when I saw the reverse-dereking.
@afrayed2 жыл бұрын
Where is your shirt from Matt? It’s awesome!
@BaranovPeter2 жыл бұрын
That cheeky parker square at 4:42 was HILARIOUS! I'm dying. Omg
@LeoStaley2 жыл бұрын
On brand. I love it. I also love that he's wearing the same shirt as when he got Dereked. Edit: wait, there's no... Video. KZbin is confused. It just keeps trying to buffer, but can't play video. edit 3, OK nevermind. It was KZbin being dumb.
@n272722 жыл бұрын
Yeah, the video has behaving strange for me, but I managed to watch it Edit: just a coincidence, I think the KZbin app bugged.
@mattparker22 жыл бұрын
I've not touched it. Must be KZbin still caching it etc.
@0v_x02 жыл бұрын
I get a lot of buffering and codec rendering issues on the Android app, pausing and minimizing tends to do the trick, at least if the video is all artifacted right after an ad (it's always an ad that breaks the codec into smeary rainbow pixels). I have issues maintaining wifi connection from upstairs sometimes, but KZbin is losing connection and coming back online waaay more often than I have issues with in other apps. It's just not very stable. Google seems to keep "fixing" things that weren't broken.
@capjus2 жыл бұрын
Someone even already pointed it out, but Derek realizes 2 years later. Poor Derek.
@kiiandrii2 жыл бұрын
"The reverse-Derek" sounds like a sex position.
@Mike_Costello2 жыл бұрын
A reverse Derek sounds like an Olympic dive manoeuvre. A reverse Derek with a half pike and twist.
@johnchessant30122 жыл бұрын
4:56 correction to the correction: second paragraph should say "greater than length 50", not 5.
@danielyuan98622 жыл бұрын
Well, do you know if it was 10 prisoners or 100 prisoners? He could be talking about 10 prisoners and you wouldn't know.
@huhneat10762 жыл бұрын
I love how there's a math + science educational youtuber cinematic universe now
@JustOneAsbesto2 жыл бұрын
Has oil been reverse-derricking Derek this whole time? It has certainly been being derricked for way longer Derek has been Dereking. There's no disputing that.
@martinmonath95412 жыл бұрын
So hilarious at the end. Still have tears in my eyes 🤣