【Numberphile】“无限”究竟有多大？Infinity Is Bigger Than You Think

Numberphile's James Grime explains Cantor's result that some infinities are bigger than others, including why the reals outnumber the integers. It is a short, accessible introduction to countable and uncountable infinity.

Why HN likes it: HN people recommend it as a clear introduction to different sizes of infinity that non-mathematicians can follow.

“Numberphile did a pretty good introductory video to this if you want to learn more”