In June 2019, Joe Biden promised wealthy so-called donors that nothing would fundamentally change. At this moment hundreds of millions of people — from those shooting off fireworks to those ranting as though they will soon shoot up public places in their MAGA hats — seem convinced that everything will fundamentally change. Biden was wrong. Everybody else is right. Either everything will change for the better or one or both of the twin dangers of environmental and nuclear apocalypse will change everything for the worse.