An element of truth - videos about science, education, and anything else I find interesting.


  • Mohamed djaber
    Mohamed djaber16 orë më parë

    My English is very poor, however I have a good understanding of the content🤔 This is proof that you are a good teacher Thanks from Algeria

  • rlee1185
    rlee118516 orë më parë

    Unless you convert the Ab sequence to a number where 1 = a 2 = b, place that person in that unique room number and push everyone else down to the right by one.

  • Richard Wallinger
    Richard Wallinger16 orë më parë

    That nano welding demo was amazing.

  • Derfoklishe
    Derfoklishe16 orë më parë

    It ran out of room cause there's no manager willing to deal with this.

  • Riley Dowell
    Riley Dowell16 orë më parë

    Loving the 237 hint there

  • nonsquid
    nonsquid16 orë më parë

    Put bristle scrubbers on the tips and let the tentacles scrub the hulls of boats with the passing of each wave while moored at the dock.

  • Rus
    Rus16 orë më parë

    Just tell em to keep walking until they find an empty room.

  • A B
    A B16 orë më parë

    Bro the hotel owner making bank

  • Versus Battle
    Versus Battle16 orë më parë

    And here I'm thinking i can predict stock market with dojis and all 😂✌

  • Jitendra prabhu
    Jitendra prabhu16 orë më parë

    0: 55😶

  • Jack
    Jack16 orë më parë

    He says covid is a natural virus BULL.

  • Gadel
    Gadel16 orë më parë

    just tell them to find an empty room and go into it

  • Jose Salinas
    Jose Salinas16 orë më parë

    Maybe the real speed of light is the friends we made along the way

  • Andrew Cavallo
    Andrew Cavallo16 orë më parë

    What’s really gonna be infinite is the amount of dough he gonna be raking in with all these customers

  • Christian Villalba
    Christian Villalba16 orë më parë

    "This way, ladies and gentlemen, you can occupy the inifinte second floor."

  • zaja zaki
    zaja zaki16 orë më parë

    Is this reupload? I swear I saw this kind of video a while back.

  • I.
    I.16 orë më parë

    Why is this thing still alive knowing it wants to end humanity? Its all about moneeeyyyyy

  • Weslley Santos
    Weslley Santos16 orë më parë

    The year is 2202 the unstoppable robots have killed more than 89% of the humans on earth by entering every possible hole there is. I write this diary for the future generations on the hopes that they develop a time travel machine before they do. Humanity must survive no matter what and our holes must stay open...

  • Tonatihu Sánchez
    Tonatihu Sánchez16 orë më parë

    What if, after you allocate the people in the infinite rooms, you apply the first strategy shifting all people one room to the right and then you have one room available for the person with the flipped sequence of the diagonal?

  • Aurora Jones
    Aurora Jones16 orë më parë

    3:23 Thats illegal and its called collusion. Do we know anything here? Can a lawyer please chime in and tell me im ignorant or spot on?

  • Faziarry
    Faziarry16 orë më parë

    Ok so I need tu put chairs in my infinite long bus?

  • Jayan Patel
    Jayan Patel16 orë më parë

    Caltech has done something in this direction

  • Stewart Bell
    Stewart Bell16 orë më parë

    If you put two clocks equilly apart and use a beam of light in the center, the beam of light is fired vertically into a prism then measure how long it takes light to hit both clocks then add both clocks time together will give you light in one direction

  • ihrv23
    ihrv2317 orë më parë

    mkay you like half explained it, quick drop at the end

  • dale blue
    dale blue17 orë më parë

    Don't know about LED lasting..... I mean as per technology intent but when it comes to limited hours the maker is totally relying on your bucks....

  • Clive Bradley
    Clive Bradley17 orë më parë

    The background sound is pointless and annoying, it detracts from what you are saying

  • Maria ER
    Maria ER17 orë më parë

    Uhh... my LED bulbs last at most like a year..

  • Gustavo Matos
    Gustavo Matos17 orë më parë

    Trip Advisor review: "Room was comfortable and the bathroom was clean, but the manager was quite annoying. He asked me to change rooms multiple times. Not very pleasant. Also, the parking lot was completely full of really long busses."

  • Teodor Music
    Teodor Music17 orë më parë

    The perfect place on Earth doesn't exi...

  • Huo Shing
    Huo Shing17 orë më parë

    The irony is, decades later, Kodak sells one of the few brands of digital cameras, where the firmware does not account for pixels that die becoming 'hot' due to radiation over time, and throw the auto-brightness out of whack and make all images super dark and unusable due to unfiltered dead hot pixels on the sensor.

  • Saint Marys-Saint
    Saint Marys-Saint17 orë më parë

    Bill how about you stop pretending that Capitalism is a natural state because it suits your agenda of being a billionaire and finally admit that it's just something humans invented to keep the few enslaving the many, humans are not born greedy, we can rise to a better way of organising a system that sees us all cooperating instead of competing.

  • Paul Ferry
    Paul Ferry17 orë më parë

    Anyone else feel like they were someone how bonded to this video and just couldn't let it go?

  • Zak
    Zak17 orë më parë

    Meanwhile I'm still struggling to calculate 1+1.

  • Matheus Edwin
    Matheus Edwin17 orë më parë

    Wait what the hell?! Why would the group with unique names are unable to fit in the hotel? The solution is on the spreadsheet part isnt it not?

  • Xa!
    Xa!17 orë më parë

    Me, the manager: knock on the door, if no one shows up go inside. If u go inside and there is someone alive move to the next one and if it’s dead throw the corpse through the window. All the doors are unlocked, u have towels and room stuff in the supply room, feel free to make yourself comfortable, and please let me finish my fu&%#*g dinner! Ps: no one said that this is the most convenient hotel

  • Horse Man
    Horse Man17 orë më parë

    Infinite meets 3 yr old kid Infinite: I'm Infinite 3yr old: why??? Infinite: I just am 3yr old: but why???

  • password 69
    password 6917 orë më parë

    The animation was so awesome, and the content mind-blowing, please use more animation like this in your videos!

  • Madhur Gupta
    Madhur Gupta17 orë më parë

    If this theory is true then the speed of sound is also worng.

  • Freedom Unrestricted
    Freedom Unrestricted17 orë më parë

    Always seemed like planned obsolesence was built into our highway system and modern building as well just didn't know the word for it. Expansion and retraction of steel rebar is a good example.

  • Nana Macapagal
    Nana Macapagal17 orë më parë

    How about this for the last example? The one with ABBA? Here's my solution: Invert all the names so the infinite tail goes to the left. As turn into 0s and Bs turn into 1s. Now each name is a binary number. The people on that bus get assigned their room like this: all the guests still in the hotel move to the room double their current one, and all the guests on the bus move to the room 2n-1 where n is the equivalent of their name. So the guy currently in room 21 moves to room 42. The guy with the name ...AAAAABBB's name is converted to ...0000111 = 7, so he moves to the 2(7)-1 = 13th room. Now what?

  • Tevendra Devarakonda
    Tevendra Devarakonda17 orë më parë

    Why dont we use a light, which splits into two beams and start the clocks,by making sure that light is equidistance from clocks. Then both are synchronised. Then incident the light👍👍

  • Episteme 666
    Episteme 66617 orë më parë

    1. newton....2. boltzmann...3. dirac

  • Gursimran
    Gursimran17 orë më parë

    wow beautiful video and great learning experience

  • Abhi shek
    Abhi shek17 orë më parë

    Few concepts from JEE actually helped me understand this video after an YEAR

  • Cortex Marketing
    Cortex Marketing17 orë më parë

    This one was awesome, Derek. You make great points that Destin will have a difficult time challenging.

  • Aldrozar
    Aldrozar17 orë më parë

    Laplaces demon: Jyggalag

  • Tharnidhar S
    Tharnidhar S17 orë më parë

    At the end of the Video I literally forgot what Infinite actually means! :( This is why math is Heck!

  • Chaziz
    Chaziz17 orë më parë

    math is hell*

  • Genius Yes
    Genius Yes17 orë më parë

    Too cute

  • Adam Place
    Adam Place17 orë më parë

    Payday needs to get on this. "New! Chocolate Payday! Sticks in your mouth, not into each other."

  • Goonabasec
    Goonabasec17 orë më parë

    Yeah evolve me that. Too complex.

  • Just Andy
    Just Andy17 orë më parë

    This video is the definition of "cant sleep at 3am so imma go on ALthe"

  • Wooden Horse
    Wooden Horse17 orë më parë

    Let me tell you a thing There are no bigger or smaller infinities(it just sounds right but cannot be true in any order) Because the whole concept of one infinity being bigger than another infinity is a wrong concept of infinity If you say the infinity of two decimals infinity(eg.1.11, 1.12, 1.13) is bigger than single digit infinity(1,2,3) then you are defining infinity the wrong way For each double decimal infinity there can be a single digit number Only that the list goes on and on You can never assume that you can group of some infinity and compare with another!!

  • CocoGoat
    CocoGoat17 orë më parë

    Tbh this ain't too realistic, I doubt this would work, first of all people are in hotels for comfort, pretty hard if your constantly supposed to move m8, and dam ppl really have to walk that far to go to their rooms and back out... ...but the riddle in itself? Good job! Really crazy probabilities and the devotion in coming up with solutions! 😄❤

  • Daniel Da Rosa
    Daniel Da Rosa17 orë më parë

    The hungry james optically float because tile oddly dislike plus a near betty. bloody, dusty accordion

  • E.M.F.T
    E.M.F.T17 orë më parë

    If there are infinite amount of rooms, wouldn't there be infinite numbers? so.. you just put them in the very next number?

  • Manav M Nair
    Manav M Nair17 orë më parë

    I still can't think about how much money will the manger be getting

  • Mikel Quintana
    Mikel Quintana17 orë më parë

    2:25 he just said that the glass was originally installed thousands of years ago? WoW ! didnt know the neanderthal built cathedrals

  • Manav M Nair
    Manav M Nair17 orë më parë

    If I was the manager : "Go find a room for yourself"

  • Simon Haddow
    Simon Haddow17 orë më parë

    Infinity + 1

  • Brian Stark
    Brian Stark17 orë më parë

    Nostalgia to PBS Infinite Series

  • What Year Is It?
    What Year Is It?17 orë më parë

    I understand the idea of some infinities being bigger than others, simply through a verbal explanation, e.g. set of integers vs set of whole numbers. At the beginning, instead of shifting residents to find new rooms, just ask the guests to go to the same rooms at the end. Isn't infinity itself supposed to be uncountable? In simple terms, why is the set of all combination of AB names an uncountable infinity? Just keep a register of the names with a roll number, so it becomes countable. Excel has the "check duplicate" function too. If the "inverse diagonal" doesn't appear as yet, it is a combination of AB nonetheless, and will be a name in the infinity. This is similar to coming across the number 3 when you have just counted up till 2 in a countable infinity.

  • Daniel Da Rosa
    Daniel Da Rosa17 orë më parë

    The direful bit systematically mark because spoon unsurprisingly turn barring a tasteful colombia. diligent, adamant son

  • Long Wu
    Long Wu17 orë më parë

    why do i feel like i seen a video like this somewhere else?

  • Cassie Rose
    Cassie Rose17 orë më parë

    so how’s this man not like dying

  • Harsh Sthapak
    Harsh Sthapak17 orë më parë

    This is the type of education i wanted

    BUDDY DUDEMANBROGUY17 orë më parë

    Hmm, a bunch of corporations meeting in secret to decide what we the people are allowed to have? COUGH*builderburg*COUGH

  • Derek Skinner
    Derek Skinner17 orë më parë

    ...? Why not just do the same "everyone move to the room double your number again instead of complicating things?

  • Baba Yaga
    Baba Yaga17 orë më parë

    Why can't everyone just go in a line to consecutive rooms ?? simps 😑

  • Suleyman Eliyev
    Suleyman Eliyev18 orë më parë

    Это майо мнения Цетр Галлактика Рашширения многих Планет звезд какую стороны Вытягываеть Центер Галлактике Сфера

  • FrankfurtFury
    FrankfurtFury18 orë më parë

    Prediction??? Best joke I've heard in my entire life!!!

  • Zack Light
    Zack Light18 orë më parë

    This answers so many questions I’ve had for so long! I have studied both science and history, so I learned about potassium and chemistry classes, and I learned about potash in history, but I never understood what the connection was or what potash really means. Everything makes so much more sense now!

  • Zack Light
    Zack Light18 orë më parë

    I do have one small qualm with your video, and specifically how you presented the pre-agricultural world. If you were discussing the period between the agricultural revolution and the industrial revolution, it would be pretty accurate, but before the advent of agriculture, humans actually had way more free time than they do today. Getting a healthy diet from a hunter gatherer lifestyle is actually very easy, it just requires a huge land footprint. I wouldn’t be making such a big deal about it except that it’s tied into our general understanding of the world and how humans relate to the environment in ways that we really need to change in order to prevent a major ecological crisis.

  • study become easy
    study become easy18 orë më parë


  • study become easy
    study become easy18 orë më parë


  • Wong Tik Ki
    Wong Tik Ki18 orë më parë

    Why does this video have 3k dislike?

  • George He Edits
    George He Edits17 orë më parë

    theres a depressingly large amount of people out there who gets angry when they dont understand something. they perceive it as an insult.

  • Kumar Varun
    Kumar Varun18 orë më parë


  • Aadi Singh
    Aadi Singh18 orë më parë

    This video concept was on TedTalks

  • Yannick Ille
    Yannick Ille18 orë më parë

    He is paranoid

  • Patrik Banek
    Patrik Banek18 orë më parë

    plot twist: the people from the first infinibus also had infinitely unique names, they just kept quiet about it to get the rooms

  • Antphoneigh
    Antphoneigh18 orë më parë

    Sydneysider? You should bring it to Lucas Heights.