wrote in message
news:ch8plf$2t0h$1{at}darwin.ediacara.org...
> This post suggests an alternative to the
> origin scenario outlined in post one.
>
> I suggest these phases in this order:
> 1. Sun selection phase
> 2. Chemical selection phase
>    (added to sun selection)
> 3. Natural Selection
>    (RNA World, protein, and
>    natural selection added to chem
>    and sun selection)
>
> 1. Sun selection phase.
> Before the first replicator or RNA world, etc
> there were 2 major 'worlds' or phases to the origin.
> The first was 'Sun selection" then followed
> 'Chemical selection'.
>
> Sun Selection:
> The heat cycle of the sun, UV radiation,
> and a wet/dry cycle,
> (on Earth, a planet with  liquid water 0-100C)
> is the selection force. It sets up the primal
> soup in shallow oceans and tide pools and
> shore lines around volcanoes.

Thanks for the post...  Is there a reason why you avoid fresh water souces?
I've always assumed - likely based on my obvious bias - that a fresh water
primal soup might allow presumably delicate first replicators more readily
than salt water.  Or do you mean any shallow waters?

Regards, Brett Aubrey.
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