Because it’s a convenient number for math. 1 and odd multiples of five are honorary even numbers because like actual even numbers they’re relatively easy to work with.
i already regret making this post bc smart people keep messaging me trying to explain math and it’s making me nauseous
I don’t know, personally I think that’s an interesting debate. It’s not really explaining math anyway, it’s explaining whether it’s a natural concept or a human concept. Which is interesting because it’s not a clear line.