Having the last index and the length be the same may not be the good thing. for instance, if you translate python's negative indices (x[-i] = x[len(x)-i]) direc

Having the last index and the length be the same may not be the good thing. for instance, if you translate python's negative indices (x[-i] = x[len(x)-i]) directly the last element would be...x[-0]? But then having the last element be x[-1] in python is also not entirely obvious.