From: John Beckett 

"Geo."  wrote in message
news::
> >> > 3. Is it likely that a change will be good or bad with
regard to its
> >> > effects on current life?
> >>
> >> The fossil record suggests that warm is good for life and
cold is bad for
> >> life. So since the claims are that it's getting warmer I
would say that's
> >> probably good, overall.
> >
> > I knew you didn't understand that principle I mentioned earlier.
>
> I understand murphy, I also understand that things are in a constant mode of
> change.

I'm afraid you've forgotten how this conversation started. There's no Murphy.

The principle is simply that there are billions of ways to change a complex
but stable system into a mess, but far fewer ways to change it to something
that suits current life.

I then asked:
3. Is it likely that a change will be good or bad with regard to its
effects on current life?

If global warming does significantly alter the climate, it is likely that
the effect will be bad for current life, simply because there are many ways
to make a complex system bad. It's like standing on the peak of a mountain.
If you take a step in a random direction, you might end up in a mess.

John

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