Forget the alarming headlines for a moment, and get lost in the weird, wonderful world of outsider art. Given the high-stakes drama that’s marked the first three weeks of 2020—an assassination in Iran, a retaliatory strike on U.S. bases in Iraq, an impeachment hearing, and, yes, the royal Megxit—the 28th Outsider Art Fair that rolled into New York last week offered the creative class the kind of winter escapist breather that sun-worshippers seek in Miami.