Ciro Santilli @cirosantilli  40

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Ciro Santilli is agnostic, see also: github.com/cirosantilli/china-dictatorship/tree/965430af9f50a93ac23dfbb72719eee0f93c8c5c#do-you-believe-in-or-practice-falun-gong

His father always told him a story about how when Ciro was small, someone raised the question of the existence of God, to which Ciro replied very directly and naturally, without any doubts:It's a genetic thing it seems.

The size of a set.

For finite sizes, the definition is simple, and the intuitive name "size" matches well.

But for infinity, things are messier, e.g. the size of the real numbers is strictly larger than the size of the integers as shown by Cantor's diagonal argument, which is kind of what justifies a fancier word "cardinality" to distinguish it from the more normal word "size".

The key idea is to compare set sizes with bijections.

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