but is there more to it than that? Rather than argue about the generality of the #Phaedrus complaint about writing, I want to instead ask, in recasting it as an argument about practicing mathematics, just what is it that a calculator does that replaces manual computation of data! Don't say "speed"! Or, specifically, how does your pocket calculator compute a square root or a trigonometric function? Surely calculators do not do a #TaylorExpansion