3 ms·
In that case your conclusion shouldn't be that civilizations are only biological. Your conclusion should be: because we have not observed life outside Earth, th
by RobertoG 4y ago
In that case your conclusion shouldn't be that civilizations are only biological. Your conclusion should be: because we have not observed life outside Earth, the more likely thing is that there is not life outside Earth, not that it's biologic.
But I think that you are using correctly your likelihoods but forgetting your priors. The prior in this case is: there is no reason that we know for this not to happen, so, it has to be happening somewhere.
- robonerd 4y agoBiological life confined to a single solar system: If it happened once, it could happen twice. Post-biological life: There is presently no evidence of it happening even once.
- q1w2 4y agoYou're really just making a semantic argument - nothing more. We have seen ZERO species that are space faring - ours doesn't qualify either.