this planet = you know…this planet. On the surface, underground, in the water, in the atmosphere, in orbit around — any of which might include living within computer systems placed in any of those locations.

us = human beings or the descendants of human beings, but carrying on a common history

100,000 years. That’s a good one. If we go by regular calendar years, then 100,000 years from now, it’s possible that the only somebodies you could find would be MOSHes. But if the year 2200 never comes, we can still talk about the subjective passage of time. In which case, 100,000 subjective years from now we (Michael and Phil) might still be living here on this planet, insisting that we are still us.

“somebody”
“this planet”
“us”
“100,000 years”

I’ve been thinking about M Anissmimov’s comment about 2200 never coming- and I think your’s could be a losing bet.