Is Calculus the Theory to Use for the University?

The basic theory of the standard model, which we call quantum field theory, is full of calculus. Calculus involves integrals andintegrals allow you to add up over many, many different things. So it's crucial to quantum field theory. But maybe there's a different map here that would describe the universe in more detail. It certainly is possible. And we're constantly improving on and developing new techniques in calculus.