Predictions are hard, especially when they are about the future. A quote that is variously attributed to Nils Bohr and Yogi Berra but with an, unsurprisingly, more complicated history, feels perfect when thinking about 2021. The range of possible outcomes includes everything from getting the pandemic behind us rapidly, to a new strain emerging through mutation that the current crop of vaccines doesn’t protect us from (sorry to be a bummer on day 1). So instead of making predictions, I will si...