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Kaj_Sotala comments on Max Tegmark on our place in history: "We're Not Insignificant After All" - Less Wrong

18 [deleted] 04 January 2010 12:02AM

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Comment author: Kaj_Sotala 05 January 2010 09:00:44AM -2 points [-]

Myself, I suspect the most plausible explanation is that interstellar colonization is simply a lot harder than we think. Nobody yet has managed to build a self-replicating probe that will actually survive through interstellar space intact and manage to set up a colony, and it's not a given that anyone ever will. Add to this the fact that even if it were possible, it could be horribly expensive, with a return on investment at least hundreds of years away.

Comment deleted 05 January 2010 11:45:56AM [-]
Comment author: Kaj_Sotala 05 January 2010 05:34:58PM 1 point [-]

space colonization is the only one that is so simple that even contemporary humans have a definite recipe for doing it that would probably work

Maybe. The nearest solar system - which would apparently take about a hundred years to reach - is over four light years away, and it isn't even certain whether it has any planets. The closest planet that is actually known is apparently ten light years away, which would then take 250 years to reach. It's obviously not impossible that we - or some future superintelligence - might manage to build a craft that survived that whole journey intact enough to continue with a colonization effort, but it doesn't seem obviously possible either.

Comment deleted 05 January 2010 06:01:41PM [-]
Comment author: Kaj_Sotala 05 January 2010 06:38:46PM 0 points [-]