字幕表 動画を再生する
-
This has nothing to do with physics, but I want to make a bet with you and 99 other people:
-
100 in total. You'll all stand in a line, take a one dollar bill out of your pocket
-
and write your position in line on the bill. Then I'll collect the bills, take them to
-
a separate room, put each one into its own one of 100 identical boxes, and randomly rearrange
-
the boxes.
-
The game is this: each of you come into the room and try to find which box your bill is
-
in - but you're only allowed to come in one at a time, you're only allowed to peek in
-
half of the boxes, and you aren't allowed to change anything about the boxes or move
-
bills around. If you find your own bill, great! Show me that you've succeeded and then leave
-
the bill in its box. And regardless of whether or not you find your bill, you have to leave
-
the room by a different route so you can't tell anyone else what you've seen, and the
-
room is then reset before the next person comes in.
-
At the end, if all 100 of you have successfully found your own bills, you all win and I'll
-
give each of you a hundred dollars plus the one you started with! But if any one of you
-
doesn't find your bill… I keep all the dollars. You are allowed to plan a strategy together
-
with the other players before any of you come into the room, but no communication afterwards.
-
The question is this: should you take the bet?
-
To recap, every person gets to look in half of the boxes, there's no communication between
-
players after they go into the room, and you only win if every single person finds their
-
own bill. $101 dollar payout if you win, nothing if you lose.
-
Take a moment to think about it, then click the links on screen or in the description
-
to make your choice - and find out what the correct answer is.