Decades from now, if we are exquisitely lucky enough to tell a thrilling story about how humanity came together in the nick of time to intercept the metaphorical meteor, the pivotal chapter will not be the highly produced cinematic moment when Barack Obama won the Democratic primary and told an adoring throng of supporters that this would be the moment when the rise of the oceans began to slow and our planet began to heal. No, it will be the far less scripted and markedly more scrappy moment when a group of fed-up young people from the Sunrise Movement occupied the offices of Pelosi after the midterm elections, calling on her to get behind the plan for a Green New Deal — with Alexandria Ocasio-Cortez dropping by the sit-in to cheer them on.