Not all functions are differentiable. Sometimes there are other better ways to describe "how does changing x affect y". Derivatives are powerful but they are n

Not all functions are differentiable. Sometimes there are other better ways to describe "how does changing x affect y". Derivatives are powerful but they are not the only possible description of such relationships. I'm very excited for what other things future "compilers" will be able to do to programs besides differentiation. That's just the beginning.