Re: Re: Re: Evolution is alive and well

Moorad Alexanian (alexanian@UNCWIL.EDU)
Wed, 21 Oct 1998 13:43:42 -0500 (EST)

At 07:58 PM 10/20/98 -0500, Glenn R. Morton wrote:
>At 10:34 AM 10/20/98 -0500, Moorad Alexanian wrote:
>
>>Physics is mathematical model building. The model has to be simple enough to
>>solve but complicated enough to answer the questions posed. Models in
>>cosmology treat all the galaxies as spread out into a uniform mass density.
>>The model may be terrible for the questions you want to ask but is perfectly
>>good to study the dynamical evolution of the whole universe! Remember that a
>>mathematical model is like a map of a city. The map is not the city, but it
>>certainly is useful to get you from one place to anther.
>
>But this is exactly the point I am trying to make. Physics, that you hold
>up as the highest of sciences, is really the science of simple systems. It
>doesn't work with complexity. Biological systems are very, very complex,
>even more complex than the galaxy of stars. But anti-evolutionists want
>biology to make exact predictions when physics can't make predictions in a
>complex system either.

Dear Glenn,

Physics deals with the whole of the physical universe with the great
exception of living beings. I keep telling my students that physics is easy,
they still do not believe me!! What I keep saying is that physics is the
prototype for all sciences. Physics does work with complex systems where
collective effects, like superfluidity, ferromagnetism, etc., are the result
of simple interparticle interactions. I am not an anti-evolutionist, a
young earth scientist nor any such thing. I am just trying to understand
what evolutionary theory is and how it differs from physics. This is to
contrast the two subjects and is not meant to denigrate evolutionary theory.
But people in the latter make all sorts of claims without any evidence
whatsoever. Even while watching ordinary animal programs on TV one hears the
constant use of evolutionary ideas to describe all sorts of animal behavior.
For instance, that lions want to see their genes be preserve. What the hell
does a lion know about genes! The real question is, aren't lions behaving as
very sophisticated computers? Are they programmed? Are they designed?

>>Mathematical models always yield exact numerical results. Mathematical
>>dynamical models yield exact solutions albeit for short periods of time if
>>there is sensitive dependence on initial conditions. Do not confuse models
>>with the real thing! Science is model building. Evolutionary theory uses no
>>math. Physics does!!!
>
>Evolutionary theory sure does use math. Have you never heard of population
>dynamics, the logistics equation, Hardy-Weinberg, the equations of
>chemistry, and others. I am sure that the biologists could do a better job
>than I. The assertion that biology doesn't use math is ... well, wrong.
>glenn

The problem posed by evolutionists is a very difficult one. However one
should not confuse their working assumptions with established facts. That is
my main point.

Moorad