Bill, every one , every scientist has presuppositions and worldview ,and as you know, in my opinion the atheists is just as much a religious position as the theist . However the atheist position , wants to rule out theist...esp biblical...position a priori , claiming that they are the lofty , unprejudiced seekers after truth.   It is true that they will not be absolutist, but when it come to origins ideas ,they have to be ,because the data just keeps inconveniently necessitating adjustments of the story. But , though in details they are not , and cannot be absolutist , at the base line they are. Evolutionism is heralded as the fact, whatever the evidence.   They are just as fundamentalist as the bible believer. Yes, the creationists base line is the bible , and openly admits as much , and in this are more honest than the committed evolutionist.   It is just as credible to begin with the bible as to exclude it , in fact, IMO, more so since it's description of life producing"after it's kind" is in accord with observational science, and evolutionism is not.   Of course, that does not mean an evolutionist cannot do some good science , maybe even equal to the theists and creationists of the scientific revolution of yesteryear !