While 10K is a few orders of magnitude greater than 500, I imagine the problems may be similar... if not more extreme.
Source: https://en.wikipedia.org/wiki/Long-time_nuclear_waste_warnin...
We've also certainly... redistributed... many metals and other things around earth. Perhaps "large concentration of iron over what use to be new york" doesn't count, but arguably it should.
Sure, but nothing will encounter or observe them ever again.
Things we put into heliocentric orbits are likely to be forever, too.
> Along a similar vein many of the satellites that we put in graveyard orbits around earth at the end of their useful life will also plausibly last that long, though there is a lot more debris for them to collide with.
While they won't decay from drag in a few million years, tidal forces and photon pressure become significant over time.
like trees falling silently in desolate forests?
Trying to grasp a time span of one million years feels impossible, in the context of development of culture and technology.
It seems quite unlikely to me that we are the first such development on this rock.