Pete quoted Jonathan Sarfati... here he is.

Jonathan Sarfati

Here is what he is involved in:

http://en.wikipedia.org/wiki/Young_Earth_creationism

He has a PhD in chemistry, and is a chess master. This illustrates the point about wearing multiple hats. His belief in Young Creationism is a **religious** belief, not a scientific one. All the relevant, interrelated scientific disciplines, such as physics, cosmology, geology, palentology...etc., point to the age of the Earth in the billions of years and the history of mankind in the hundreds of thousands or millions, depending on what your basic definition is. **NO ONE** acting purely as a scientist accepts a 5-8 thousand year old concept of creation.
In so far as Sarfati tries to defend Young Earth Creationism, he is warping & twisting scientific data, and re-interpreting the basic finding in order to force them into compliance with his religious beliefs. I have not researched HOW he came to his religious beliefs... perhaps it was some psychological/emotional decision... but all his seemingly well developed mental abilities have been used in two very different ways. By taking YEC views AS a primary premise, he has created a 'logical' web of conclusions that ignores any consideration of the factual basis of that primary premise.
   You just can't DO that!