Comment by palmotea

That's why all civilizations need to proactively obliterate any durable structures and artifacts they create on a regular basis. Destroy everything in that sweet spot where it's old junk that no one cares about' nothing should survive long enough to become valuable due to its antiquity.

If you don't leave anything behind, future generations can just build without caution, because the past will forever be shrouded in mystery. Let's not repeat ancient civilizations' mistakes.