Re: David Deamer's Ideas

On Mar 9, 5:33 pm, Tim Tyler <seemy...@xxxxxxxxxxxxxx> wrote:
Tom Hendricks wrote:
This site has a good intro to Wachtershauser's ideas
http://query.nytimes.com/gst/fullpage.html?res=9C0CE4DA143EF931A15757...

[...]

Also I note this from the article

''The theory as a whole is this overblown thing which so far has not
been shown to work,'' Dr. Miller said. ''Making acetic acid is sort of
blah to me, that's nothing.'' He doubts that surfaces really make
chemicals more stable, and as for life originating in geothermal
surroundings, he said, ''the high temperature origin of life is out of
the question.''

Miller is a soup enthusiast.  Mineral surfaces were probably
important, according to a great number of researchers - not
because they produce stability, but because they filter
and constrain molecules - and then catalyse some of their
possible reactions, while inhibiting others.

Tyler said,"Not because they produce stability..."You are referring to
stability in the short run.
But in the long run a little instability then leads to more stability
overall. Stable life has been here 4 billion years.

Constancy with variation. You need both parts for stability.
Constancy alone is not enough. Variation is not enough.
Constancy with variation is the best combination.
That two part formula, exactly apes the sun/heat/temp cycle -
constancy with variation.
Life is such an obvious reflection of an adaptation to the sun heat
cycle. I'm surprised others don't see it.

So if mineral surfaces were important in the OOL, it is because
ultimately they helped produce
stability in a chemical system, which we call life.



Films and membranes perform some of these tasks - but
minerals can have programmable catalytic grooves,
making them the most obvious choice for early catalysts.
--
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