There are so many possible answers for "How do we handle long-term nuclear waste disposal and keep future generations safe?" but unfortunately on the time scale those solutions are aiming for, they will all inevitably end up being treated the same way as The Curse of the Pharaohs
That is, people in 10,000 years will see that and think "Damn the ancients musta hid some GOOD shit in there!"
Lady, EVOLVED 
@coriander idk personally i kind of think the problem is overblown, like sure we’ve lost a lot of stuff since ancient egypt but you know what we haven’t lost? the maths and sciences
@coriander humans are really bad at history and politics and structuring a functioning society but we're pretty good at doing science and remembering things that kill us
bigger threat is that humans will know that there's deadly radiation but have formed a death cult which says that's a good thing somehow
@Lady hmmmm
yeah.....
@coriander i think it's hard to imagine a world without a basic understanding of nuclear radiation without humans having also lost an understanding of why baking soda and vinegar goes boom and i just don't see that happening
@coriander once we figured out that the universe is made up of elements and started studying those elements then the rest of it all followed pretty quickly
@coriander and humans aren't going to forget what causes cancer, we all hate cancer
@Lady that is a good point