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DanielLC comments on Open thread for December 9 - 16, 2013 - Less Wrong Discussion

5 Post author: NancyLebovitz 09 December 2013 04:35PM

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Comment author: DanielLC 10 December 2013 08:16:53PM 0 points [-]

Does it add billions of years? That's not saying that life could have arisen and survived since 15 million years after the Big Bang.

Comment author: shminux 10 December 2013 08:41:58PM *  0 points [-]

The paper implies that it only adds millions of years, not billions.

a new regime of habitability made possible for a few Myr by the uniform CMB radiation

Once the CMB cools down enough with the expansion of the Universe, the Goldilock conditions disappear. The CMB temperature is roughly inversely proportional to the age of the Universe, so 300K at 15 million years becomes just 150K 15 million years later.