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rocurley comments on Belief in the Implied Invisible - Less Wrong

30 Post author: Eliezer_Yudkowsky 08 April 2008 07:40AM

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Comment author: rocurley 21 August 2011 04:20:12AM 4 points [-]

I'm pretty sure it is possible to escape Earth's light cone at sublight speeds. You can go arbitrarily far from earth (if you're patient). Eventually, you will get to a point where your distance from Earth*the Hubble constant is greater than the speed of light (you are now a Hubble length from Earth). At this point, a photon you shoot straight towards Earth will not approach Earth, because the distance in between is expanding at the speed of light.