For all their disagreements, evolutionists strongly agree that evolution is a fact, just as gravity is a fact. There is no question that evolution occurred. And since evolution is as certain as gravity, those who do not assent must not be rational, or they must have ulterior motives. If there are scientific questions about evolution (and there are), they merely relate to the question of how evolution occurred, not whether evolution occurred. Those who point out that the scientific evidence does not bode well for evolution must understand that such evidence can in no way call the fact of evolution into doubt. The scientific evidence can only bear on questions of how evolution occurred.