Time, Finite Statistics, and Bell’s Fifth Position

In this contribution to the 2002 Vaxjo conference on the foundations of quantum mechanics and probability, I discuss three issues connected to Bell’s theorem and Bell-CHSH-type experiments: time and the memory loophole, finite statistics (how wide are the error bars, under local realism?), and the question of whether a loophole-free experiment is feasible, a surprising omission on Bell’s list of four positions to hold in the light his results. Lévy’s (1935) theory of martingales, and Fisher’s (1935) theory of randomization in experimental design, take care of time and of finite statistics. I exploit a (classical) computer network metaphor for local realism to argue that Bell’s conclusions are independent of how one likes to interpret probability. I give a critique of some recent anti-Bellist literature.