Sure, many concepts identified 2000 years ago still exist. Adding, subtraction, platonic shapes. But we still add stuff, and some things are even changed. We d

Sure, many concepts identified 2000 years ago still exist. Adding, subtraction, platonic shapes. But we still add stuff, and some things are even changed. We don't call odd numbers "male" anymore, and even numbers "female", like Pythagoras did. Calculus was only invented a couple of hundred years ago, and looks nothing like the creative trig proofs of the Greek. Our handling of infinity dates from the beginning of the 20th century (Cantor), as is all the meta weirdness like the completeness theory of Gödel. And that's math, a domain, the domain where knowledge acquired stays valid for all of eternity.