Returning to business as usual is not an option. Even if it were possible to simply click our fingers and turn back the clock, a return to business as usual means a future of climate breakdown, ecological catastrophe, economic inequality, and social instability. If we spend the next few years resuscitating last century's economy, with all of its flaws and its consequences, then the window of opportunity to avert these future crises will have closed. We now have a once-in-a-century opportunity—a responsibility even—to change. A year ago, few could have fathomed the situation that we find ourselves in today, but 30 or 50 or 100 years from now, when future generations look back at our response to this unprecedented series of events, we need to be able to tell them that we were thinking ahead, for them and for all of those to come.