If you ask philosopher Adam Miller what he thinks the end of the world will be like, he’d tell you it looks like the day his son turned fifteen years old. Not because anything remarkable that happened that day, but because it wasn’t remarkable at all. It was a day that came and went and then it was gone. And it’s never coming back. We face the end of worlds like this every day. But rather than despairing, this realization can energize us to appreciate the present even more.