I agree but with a slightly different definition. There are no numbers in the real world, that require and infinitely long definition. 1/3 has infinitely many

I agree but with a slightly different definition. There are no numbers in the real world, that require and infinitely long definition. 1/3 has infinitely many digits in decimal, but has a finite definition. So its good. I would write down the opposite, a definition of an uncomputable, unnameable real, but there are not enough atoms in the universe (multi-verse, ...) to being to do that.