Of course, if you buy the self-indication assumption (which I do not) or various other related principles you’ll get an update that compels belief in quite frequent life (constrained by the Fermi paradox and a few other things).
More relevantly, approaches like Robin’s Hard Step analysis and convergent evolution (e.g. octopus/bird intelligence) can rule out substantial portions of “crazy-hard evolution of intelligence” hypothesis-space. And we know that human intelligence isn’t so unstable as to see it being regularly lost in isolated populations, as we might expect given ludicrous anthropic selection effects.
Of course, if you buy the self-indication assumption (which I do not) or various other related principles you’ll get an update that compels belief in quite frequent life (constrained by the Fermi paradox and a few other things).
More relevantly, approaches like Robin’s Hard Step analysis and convergent evolution (e.g. octopus/bird intelligence) can rule out substantial portions of “crazy-hard evolution of intelligence” hypothesis-space. And we know that human intelligence isn’t so unstable as to see it being regularly lost in isolated populations, as we might expect given ludicrous anthropic selection effects.
I looked at Nick’s:
http://www.anthropic-principle.com/preprints/olum/sia.pdf
I don’t get it. Anyone know what is supposed to be wrong with the SIA?