"Truth is one; the sages just speak of it in different ways."
My wife and I independently came up with the idea of calling our outings with our son "random walks." I.e. Clark will go in one direction for a few steps, then for no apparent reason will make a sharp turn and go a different way. When he's older I'll take him on a martingale jog. (Okay you got me, I'm bluffing. I don't know the difference between a random walk and a martingale.)