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 )
-
@gwern@cinnamon_carter Positing leap from nothing to 4^(10^5) complexity prokaryote in short time is "a miracle occured here" assumption.
@gwern @cinnamon_carter Before first self-sufficient ecosystem there could only be random trials with RNA & proteins.
-
-
@gwern@cinnamon_carter P atoms in universe limit random trials of RNA at 1e6/second in parallel to << 10^92 in 10e10 yrs. -
@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. -
@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. - 27 more replies
New conversation -
Loading seems to be taking a while.
Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.