timtyler comments on Anthropics and a cosmic immune system - Less Wrong

-8 Post author: Mitchell_Porter 28 July 2013 09:07AM

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Comment author: timtyler 28 July 2013 11:20:28AM *  -2 points [-]

If large lifeforms are not nearby, how would we distinguish between their Dyson spheres and the (observed) prevalence of dark-matter?

Comment author: gwern 28 July 2013 04:18:54PM 3 points [-]

Thermal radiation...?

Comment author: polarix 29 July 2013 04:52:54PM *  0 points [-]

If I were building a dyson sphere, I'd want to collimate all the radiation toward a single direction, perhaps gating it periodically. Make it look like a pulsar.

Comment author: gwern 29 July 2013 05:15:26PM 0 points [-]

We're surrounded by stars in all directions, and that would be far from free.