You’re being downvoted but the reference is this https://en.wikipedia.org/wiki/Long-term_nuclear_waste_warning_messages https://en.wikipedia.org/wiki/Long-term_

You’re being downvoted but the reference is this https://en.wikipedia.org/wiki/Long-term_nuclear_waste_warning_messages https://en.wikipedia.org/wiki/Long-term_nuclear_waste_warnin... Wrong timescale though. 10000 years vs. 50 million. Millions of years is a very very very long time, our intuition is often wrong about timescales like that. For example a lot of modern land was still molten rock underground and vice versa.