xxx: Interestingly, who “thought” or “calculated” the number of atoms in the universe? On what basis is this number taken? The average density of the stars and celestial bodies scattered through the infinite vacuum? Average average number? I have always been surprised by these numbers.

YYY: Well, at least some approximate estimate is needed. Saying “to fuck” is not common in the scientific community, so we took a number that is still bigger than anyone can imagine.

c) the habr