Re: There was never a moment in time when


"Tim Tyler" <tim@xxxxxxxxxxx> wrote in message news:d8t4j7$6cb$1@xxxxxxxxxxxxxxxxxxxxxx
> Perplexed in Peoria <jimmenegay@xxxxxxxxxxxxx> wrote or quoted:
[snip]
> > I'm not sure I understand what you are saying here. By a "cycle ...
> > not involving the correct positioning of a unit", do you mean a
^^^
> > cycle which adds a unit correctly, then removes it (incorrectly)?
>
> No: in the same terms, I would describe that as a cycle which /does/
> involve the correct positioning of a unit (though it is subsequently
> undone).

Whoops. My mistake. The marked "not" should not have been there.

[snip yet another go-around of the same disagreement]

> If it helps at all, here's Cairns-Smith describing the process
> that leads to error correction during crystal growth:
>
> ``Even then, new units will come and go meny times: the difference
> between crystal growth and crystal dissolution is not absolute
> under such circumstances: both happen, it is a question of which
> is marginally faster. And mistakes are frequent, perhaps usual.
> That is no matter since a crystal with a mistake in it is less
> stable - more soluble than a more perfect crystal: the crystal
> will tend to redissolve until the mistake has been eliminated.
> Trial and error - and error correction - are the secrets to success.''
>
> - Genetic Takeover, p.156.
>
> You may perhaps discount Cairns-Smith's testimony. However, I cite
> him, since he's a *much* greater expert in crystallography than I am.

AFAIK, Cairns-Smith has correctly described the crystal growth process.
AFAIK, Cairns=Smith has NOT described "kinetic proofreading".
I don't see why you continue to misunderstand what I am saying.


.