Science explains all reality in terms of cause and effect relationships and sufficient reason. Yet when faced with the origin of the universe he abandons the principle of sufficient reason and embraces causelessness or chance. The odds of such a chance happening are miniscule. The possibility of one protein molecule rising spontaneously out of nonliving matter is one chance out of 10 to the 321 st power, which is a figure of 1 followed by 321 zeros. Even if admitted, evolution only introduces a longer time frame into the question of design.
Evolution still begs the question of design.
Even if the design argument is valid, it does not prove a creator, only an architect, and even then only an architect intelligent enough to produce the known universe, not necessarily an omniscient being. However, this universe of ours is so vast and wonderful, we can safely conclude that its designer would be worthy of our worship and devotion. In essence - God is necessary to explain moral experience. The argument starts with the simple fact of ethical experience -ie. Morals, or these pressures are merely conditioned by society.