a home laptop. But challenges, and the songs that score them, add a connective, traceable nervous system to the writhing mass of grainy video loops. Their revivals underscore the appeal of a good challenge, artistic or otherwise: discomfort, growth, and a meaningful connection. It would be much safer, Plato thought, to entrust power to carefully educated guardians. Like many people I know, I’ve spent recent months staying up late, reading polls in terror. Caplan dismisses retrospective voting, quoting a pair of scholars who call it “no more rational than killing the pharaoh when the Nile does not flood.” But there was nothing else obviously artistic about her or in her behavior with other people. In 2010, the foundation released a typeset edition of “Zettel’s Traum,” removing the bar