There will come a time when all of us are dead. All of us. There will come a time when there are no human beings remaining to remember that anyone ever existed or that our species ever did anything. There will be no one left to remember Aristotle or Cleopatra, let alone you. Everything that we did and built and wrote and thought and discovered will be forgotten and all of this will have been for naught. Maybe that time is coming soon and maybe it is millions of years away, but even if we survive the collapse of our sun, we will not survive forever. There was time before organisms experienced consciousness, and there will be time after. And if the inevitability of human oblivion worries you, I encourage you to ignore it. God knows that’s what everyone else does.

Everything matters because it won't last

We spend enormous energy building things we think will last—a career, a reputation, a legacy, maybe just a really good comment on the internet. There's something almost absurd about it when you step back and acknowledge that none of it survives forever. The sun will eventually swallow everything. Civilizations we think of as eternal are already dust. And yet Green isn't suggesting we should spiral into nihilism or just give up.

The surprising part isn't the doom—it's the permission slip in that last line. He's saying the big cosmic perspective is actually optional. Most people navigate this by not thinking about it too hard, and that's okay. You don't need to resolve the ultimate meaninglessness of human existence to live a good Tuesday. The people around you matter today. The thing you're building matters this year. Working toward something real doesn't become worthless just because it's temporary.

There's something almost liberating in accepting that your accomplishments don't need to be eternal to be worthwhile. You can write the book, make the meal, have the conversation, and build the relationship knowing full well it won't echo through infinity. And that's enough. That's always been enough.