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I take this the same way I take the Drake equations: As an interesting thought experiment but only as good as the assumptions they make. But I will say this is

I take this the same way I take the Drake equations: As an interesting thought experiment but only as good as the assumptions they make. But I will say this is based on entirely reasonable assumptions and observations. It's an interesting argument as I've always been of the opinion that life is abundant but the universe so large that it's still quite spread out.

mortenjorck 5y ago
> I've always been of the opinion that life is abundant but the universe so large that it's still quite spread out. This is basically my optimistic/pessimistic view of alien life. The scale of the universe means the probability of alien life existing must be essentially 100%, while the scale of the universe also means the probability of any life finding another instance of life must be essentially 0%. Although a fun corollary inspired by the Big Alien thought experiment is that local maxima must also exist: Somewhere, some planet with intelligent life must have been close enough to another such planet that they did indeed find each other.
- shakezula 5y ago
  > local maxima must also exist Interesting point. It follows that as we can observe how galaxies and clusters form, it must follow that if life requires a star, it would cluster and group similarly, and eventually group closely enough for two intelligent species to bump into one another.
  - edgyquant 5y ago
    Key word being eventually. It may be that is the case but we are early in the universe and that it will be another 10 billion years before enough life exists for two independent life trees to give rise to multiple civilizations within range of each other to ever meet.
- imtringued 5y ago
  I'm pulling this out of nowhere but let's say bigger populations correlate with ease of detection. It would imply that the average planet is less detectable than our own planet and thus the Fermi-Paradoxon is resolved from our perspective. Lots of life absolutely everywhere but most of it is undetectable. Of course this is only about our perspective, the assumption is that aliens would never visit us. So one step further, bigger populations correlate with ability travel. (pulled out of nowhere) However, if they are advanced enough to visit us and therefore have a bigger population than ours (interplanetary species), wouldn't they run into the opposite problem? They would have trouble detecting us because we only live on a single planet.

mortenjorck 5y ago

> I've always been of the opinion that life is abundant but the universe so large that it's still quite spread out. This is basically my optimistic/pessimistic view of alien life. The scale of the universe means the probability of alien life existing must be essentially 100%, while the scale of the universe also means the probability of any life finding another instance of life must be essentially 0%. Although a fun corollary inspired by the Big Alien thought experiment is that local maxima must also exist: Somewhere, some planet with intelligent life must have been close enough to another such planet that they did indeed find each other.

shakezula 5y ago
> local maxima must also exist Interesting point. It follows that as we can observe how galaxies and clusters form, it must follow that if life requires a star, it would cluster and group similarly, and eventually group closely enough for two intelligent species to bump into one another.
- edgyquant 5y ago
  Key word being eventually. It may be that is the case but we are early in the universe and that it will be another 10 billion years before enough life exists for two independent life trees to give rise to multiple civilizations within range of each other to ever meet.
imtringued 5y ago
I'm pulling this out of nowhere but let's say bigger populations correlate with ease of detection. It would imply that the average planet is less detectable than our own planet and thus the Fermi-Paradoxon is resolved from our perspective. Lots of life absolutely everywhere but most of it is undetectable. Of course this is only about our perspective, the assumption is that aliens would never visit us. So one step further, bigger populations correlate with ability travel. (pulled out of nowhere) However, if they are advanced enough to visit us and therefore have a bigger population than ours (interplanetary species), wouldn't they run into the opposite problem? They would have trouble detecting us because we only live on a single planet.