I believe we should be good custodians of the Earth.
Even if you're not a parent, you have parents and you've been in those situations where there's a certain kind of goodbye - nothing this extreme exists, but I think that's what everyone holds onto, that common denominator that runs through this that everyone can understand.
In terms of long-term durable storage, the human mind, paradoxically, is pretty good, but it's very fragile.