Evolution, like the grand theories in astro-physics, is "generally accepted", not on the basis of provability, but rather on the basis of beauty and elegance. It is on this basis that Dr. Stein has made his comment. To have an opinion about the "truth" of things like "Grand Unification Theory", or physic's Holy Grail, TOE, (Theory of Everything), is not possible. It is in that sense that these ideas are what Adler would refer to as "convenient fictions" in that they help us to organize information and even make some possible predictions. They remain, however, untestable for truth by current scientific technologies. Henry is not advancing any notion of a bias, but rather urging us to think more clearly about what we "think we know".

__________________
George Neeson M.D.