Nick Bostrom

So what accounts for that?

So what accounts for that?

And I think the most likely explanation is that it's just really hard to get to...

And I think the most likely explanation is that it's just really hard to get to...

technologically advanced life.

technologically advanced life.

And maybe it's hard to get to even simple life.

And maybe it's hard to get to even simple life.

And you could look for these candidate places of where there could be this kind of great filter.

And you could look for these candidate places of where there could be this kind of great filter.

Maybe it's the emergence of simple self-replicators.

Maybe it's the emergence of simple self-replicators.

Like so far we haven't found that on any other planet.

Like so far we haven't found that on any other planet.

Or maybe it's slightly later on, maybe the step from prokaryotic life forms

Or maybe it's slightly later on, maybe the step from prokaryotic life forms

eukaryotic life forms on earth it looks like that took one and a half billion years like maybe what that means is that it's astronomically improbable for it to happen and you just had one and a half billions of years where random things just bumped into each other in chance and um

eukaryotic life forms on earth it looks like that took one and a half billion years like maybe what that means is that it's astronomically improbable for it to happen and you just had one and a half billions of years where random things just bumped into each other in chance and um

With a large enough universe, and ours might for all we know be infinitely large, with infinitely many planets, then eventually, no matter how improbable something is, it will happen somewhere.

With a large enough universe, and ours might for all we know be infinitely large, with infinitely many planets, then eventually, no matter how improbable something is, it will happen somewhere.