It is kind of funny to think of things in that context, because it's absolutely true. This planet will eventually face another mass extinction event, like the countless to have come prior - and we're well overdue. We may yet escape that, yet eventually most of this entire solar system will be overcome by the sun as it cools and expands outward. And we may yet escape that. But then there's undoubtedly yet new discoveries we'll make to show how galaxies also eventually die. And then of course there's the issue of finally dealing with the universe itself. Though by that point, if history is any guide, we'll have long since discovered that even the universe itself is far from the final act in this peculiar game.