The Infinite Hotel Paradox - Jeff Dekofsky


Comments • 24 358

  • Nikolay Iliev
    Nikolay Iliev  11 minutes back

    That's easy, infinity is a notion and not a number. You can't add, subtract, multiply, n+-... with it. Point.

    • Abaid Anwer
      Abaid Anwer  45 minutes back

      3 is a prime number you skipped that .

      • Galaxy Le
        Galaxy Le  1 hours back

        All I can hear in this video is

        • Pickle Rick
          Pickle Rick  4 hours back

          Think of all infinite loads in that hotel. And i dont mean laundry

          • AnonymousCookie
            AnonymousCookie  5 hours back


            • maumbu
              maumbu  6 hours back

              I can’t get pass :60 of this video. If the hotel is “full” (infinity) how is there a room to move the guest over to the next room? And if the hotel has a room to move the guest into why not just put the new guest in the “last” room? I’m sooo confused.

              • Justice Eye
                Justice Eye  7 hours back

                Alright alright keep your secrets!

                • MCDReviews
                  MCDReviews  7 hours back

                  The real question is who cares bruh

                  • NeuLawrence
                    NeuLawrence  8 hours back

                    *HotelHell Season ♾ Episode ♾*

                    • Marko San
                      Marko San  9 hours back

                      sI have so many question so little understanding

                      • Meat Whistle
                        Meat Whistle  10 hours back

                        Wait, what?

                        • Alexa Seok
                          Alexa Seok  11 hours back

                          all i understand is 'infinite'

                          • djvwise
                            djvwise  11 hours back

                            This made me think of that last time I tripped out on LSD ;)

                            • IlTipoQuadratico7777777
                              IlTipoQuadratico7777777  16 hours back

                              1:27 seems legit.

                              • DRay Foxxe
                                DRay Foxxe  16 hours back

                                This is honestly the stupidest paradox theory ever thought of.

                                • João Guilherme
                                  João Guilherme  16 hours back

                                  dude, why didnt he just do the even/odd separation process again?

                                  • Jeffrey scarbrough Board Games&Geek things

                                    Solution is simple there is no such thing as infinite

                                    • Adalina Cano
                                      Adalina Cano  17 hours back

                                      how can he finish the first bus if there’s an infinite amount of people in the bus

                                      • Ghost Zephyr
                                        Ghost Zephyr  17 hours back

                                        I can't handle so many handle's 😕

                                        • anushka singh
                                          anushka singh  17 hours back

                                          Okay , so the last line was scarier than a horror movie

                                          • TwistedSouL
                                            TwistedSouL  18 hours back

                                            A hotel with an infinite number of rooms would occupy all the space in its universe. The buses couldn’t come from anywhere outside the hotel as there would be no space where the hotel doesn’t exist.

                                            In fact the hotel *is* the universe.

                                            • marmar stiehler
                                              marmar stiehler  19 hours back

                                              If there was infinite rooms then why did the people have to move rooms every time someone else came, just give the new people new rooms, no one has to move, problem solved

                                              • Maurice Rémon
                                                Maurice Rémon  19 hours back

                                                If the hotel has infinite rooms available, how can it be full? 🤔

                                                • Dante Albert
                                                  Dante Albert  20 hours back

                                                  There's no escape.

                                                  • Shreyansh Das
                                                    Shreyansh Das  20 hours back

                                                    Were there infinite rooms
                                                    Mean is it equivalent to the wrld population?

                                                    • LocalWeeb
                                                      LocalWeeb  21 hours back

                                                      ok ted ed i have a question for you
                                                      I GIVE YOU INFINITY FENCE POSTS
                                                      USE ALL THE POSTS
                                                      how do you do it?

                                                      • MCPE Trolling
                                                        MCPE Trolling  23 hours back

                                                        When I scrolled down I expected the videos in the middle to keep going for some reason, infinitely. I was surprised when I saw the comments 😂 I guess the concept of infinity got to meh head

                                                        • Charlike Mike Reagent
                                                          Charlike Mike Reagent  23 hours back

                                                          Why the heck you even need to move the current guests?!?! Dafak. Just put the infinite incoming guests to the infinite unbooked rooms that your infinite hotel have. Don't mess with your current guests, because exactly THAT you will start losing some of them and loose money.
                                                          The 90% of the time of this video is waste, just needed to talk about the Aleph Zero.

                                                          • ΔενΕχω Ονομα

                                                            Mind blown

                                                            • Bri Ba
                                                              Bri Ba  1 days back

                                                              So the moral of the story is to ask for Room 6?

                                                              • 張家源
                                                                張家源  1 days back

                                                                0:23 0:23 0:23
                                                                Ted used confusion.
                                                                It's super effective!
                                                                The viewers are now confused and start questioning about their life.

                                                                • Keval Bauva
                                                                  Keval Bauva  1 days back

                                                                  Why doesn't he alot the first guy infinity+1 in first place

                                                                  • clarissa ng
                                                                    clarissa ng  1 days back

                                                                    With brains like that why is the night manager a night manager 😂😂

                                                                    • Mr.LegendsXD
                                                                      Mr.LegendsXD  1 days back

                                                                      God What is this madman doing
                                                                      Somebody stop him or he be countin forever

                                                                      • the green face
                                                                        the green face  1 days back

                                                                        Me:Dad where is the Terrance of this hotel
                                                                        Dad: son your grandfather is on Terrance
                                                                        Me : you said that he is in the heaven
                                                                        Dad: what I said is the same as I said before

                                                                        • the green face
                                                                          the green face  1 days back

                                                                          There is a fire in the hotel and the people say hey the elevators aren't working .
                                                                          Me:let's jump out of the window

                                                                          Me:3 2 1

                                                                          Manager sir you have to move to the room no. 57 billion me
                                                                          Me : throws the manager out and check what happens

                                                                          • GD Xsuma
                                                                            GD Xsuma  1 days back

                                                                            *Wait, that’s illegal*

                                                                            • BanBan Arneil
                                                                              BanBan Arneil  1 days back

                                                                              Why need to jump from 3 to 3 to the power of 7 or whatever. .why not just let him jump to room 4 , and 4 to 5 and 5 to 6 and so on.. 😡😡😡

                                                                              • Edgar Nackenson
                                                                                Edgar Nackenson  1 days back

                                                                                The goal is to create a mapping that assigns each guest to a single specified room. The scenario here is that infinite guests are arriving. If we just move each guest up a room when a new one arrives, then each guest has to make that n+1 trip infinitely many times. So, after you've finished unloading the infinite bus, where is guest three? They're not in room four, because more than one guest has arrived. They're not in room ten, because more than seven guests have arrived.

                                                                                In fact, for each room, guest three is not inside it. And, on top of that, this is true for literally every guest, even the ones that were inside the bus. Thus, you need a different mapping. Otherwise, instead of accommodating all the guests, you'll end up effectively accommodating none of them.

                                                                            • TheDarkShenzi
                                                                              TheDarkShenzi  1 days back

                                                                              Why does this manager keep worrying about making room in a hotel with infinite rooms?

                                                                              • yamata no orochi
                                                                                yamata no orochi  1 days back

                                                                                My mine exploted.

                                                                                • Aloy Wild
                                                                                  Aloy Wild  1 days back

                                                                                  Manager: Sir u have to move from room 1 to infinity.
                                                                                  Me: hold my luggage🧳🚛🚚🚚🚚

                                                                                  • Bodie Buckby
                                                                                    Bodie Buckby  2 days back

                                                                                    you see good sir this paradox reveals another paradox within your paradox. if the people moved from n to n+1 you would be asking an "infinite" amount of people to move to n+1 one by one which would take until your day of death.

                                                                                    • Edgar Nackenson
                                                                                      Edgar Nackenson  1 days back

                                                                                      You don't necessarily have to ask them to move one by one though. Tell everyone to go at some specified time, and the entire thing will take a finite length of time.

                                                                                  • Agha Noor Vlogs
                                                                                    Agha Noor Vlogs  2 days back

                                                                                    I want my 6 minutes back

                                                                                    • Zoya Siddiqui
                                                                                      Zoya Siddiqui  2 days back

                                                                                      Me at 3am

                                                                                      • Butter Nuts
                                                                                        Butter Nuts  2 days back

                                                                                        I think I vaguely get it? Infinity+1 isn’t an actual number, so you can’t check someone into the next room because you don’t know what that room is. However, you can ensure that everyone gets a room through the processes explained in the video. By putting one new guest in the first room and forcing its current occupant into the next one, everyone will eventually have a room, but there will always be two people switching rooms at any given moment. The process of switching rooms lasts forever.
                                                                                        I think that’s it but I’m bad at explaining

                                                                                        • MikeRosoftJH
                                                                                          MikeRosoftJH  2 days back

                                                                                          The actual procedure of moving the guests is really irrelevant. Suppose all guests leave their room; now the hotel is empty. Suppose then every guest moves to a room one higher from where they came from; now each guest has a room, and each room except the first has exactly one guest. The first room is empty and can be occupied by a new guest. (Mathematically speaking, the set of all natural numbers can be mapped one-to-one with its strict superset or subset. And in fact, a set can be mapped one-to-one with its strict superset or subset, if and only if it has a countably infinite subset. Assuming axiom of choice, this is true for all infinite sets.)

                                                                                      • Nuryah Kymberlly oliveira

                                                                                        Manager? Good
                                                                                        Rooms? Infinite
                                                                                        Hotel? Trivago

                                                                                        • Dawn Dela Vega
                                                                                          Dawn Dela Vega  2 days back

                                                                                          every time he says "infinite", i swear this video goes 2.0x faster

                                                                                          • Frank F
                                                                                            Frank F  2 days back

                                                                                            You don't need to know any math to become hotel manager they said. You just need to finish the studies of hotel management they said