The Nobel Prize went to two physicists honored for the discovery that neutrinos have mass . Their discovery was a major contribution to what is now known as the "standard model" of the elementary particles. Until their turn-of-the-millennium work, the widely shared opinion was that neutrinos (like photons) don't have mass. This consensus had led -- don't ask me why-- to a further consensus on how many of them ought to be detectable on earth. And that, in turn led to some confusion because the quantities actually detected were much smaller than what they 'should' be. So these are experimenters who managed to clear up a split between other experimenters and theorists. The theory had to be revised so that the experimental results, the actual quantity detected, could be accommodated, and their work showed how that could be done. A victory for pragmatism in science, the hospitable homeland of pragmatism. I enjoy this time of year for a number of reasons, n...