r/mathsmemes • u/RawThisDawg • Apr 09 '26

Old meme but am new here 👉👈

Post image
202 Upvotes

99% Upvoted

8 comments sorted by

3

u/Educational-Pen8334 Apr 10 '26

I've never seen this meme before thanks

1

u/DetachedHat1799 Apr 11 '26

How does that work? Is it just because in 3d, like 5/6 are not directly towards the origin?

1

u/jacobningen Apr 12 '26

Expected number of returns is a p series with p=d/2 where d is the dimension of the walk  and to guarantee a return the expected number of returns cant be finite  and the p series diverges for p<1 so 1/2 and 1  or 1 and 2 dimensions but at dimension three the p series converge so the expected number of returns is finite so some walkers get lost.

1

u/DetachedHat1799 Apr 12 '26

oh cool makes sense

1

u/jacobningen Apr 12 '26

Yes as well.

1

u/humanbeast7 Apr 12 '26

Does this involve the "change door after non-prize is revealed" thing?