Evidence that life started developing near the time the Universe began to reach present state pdf http://arxiv.org/ftp/arxiv/papers/1304/1304.3381.pdf … (HT @NickSzabo4 )
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@gwern@cinnamon_carter Making efficiently compressed 150 base-pair organism may be feasible. For 200 base pairs << ~ 1/10^27.
@gwern @cinnamon_carter In other words, the first self-sustaining ecosystem had to be vastly simpler than efficiently compressed prokaryote.
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@NickSzabo4@cinnamon_carter True and irrelevant. Complexity of minimal life doesn't imply strict linearity of growth over all time! -
@gwern@cinnamon_carter The point is not strict linearity, the point is eliminate the hidden assumption of miraculously improbable events. -
@NickSzabo4@cinnamon_carter Huh? the point of that paper *is* strict linearity. It's whole model: assume linearity and project backwards. -
@gwern@cinnamon_carter It posits a reasonable working assumption about complexity growth instead of hand-waving about "open niches". -
@gwern@cinnamon_carter Ecosystem with 150 base pairs of complexity is chemically very handicapped, and has very few open niches available. -
@NickSzabo4@cinnamon_carter On a proto-earth, no niches are filled; all are open. No competition by definition. -
@gwern@cinnamon_carter It's not a niche if no organism has chemical ability to exploit it. -
@gwern@cinnamon_carter Niches that required photosynthesis, nitrogen fixing, and even many far simpler capabilities were unavailable. - 24 more replies
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