...why not? Being serious here, straight lines should at least work in the short term unless the second derivative is big, which is the claim, and for other things we opportunistically choose f(X) and a g(Y) to make it straighter.
...why not? Being serious here, straight lines should at least work in the short term unless the second derivative is big, which is the claim, and for other things we opportunistically choose f(X) and a g(Y) to make it straighter.