Beneficial Mutations and Probability

This is a video explaining one of the fundamental reasons that Darwinism doesn't work. For those of you who accuse me of consulting only YEC sources, my reference for this video is chapter 3 of the book, Not By Chance!, by Dr. Lee Spetner. Dr. Spetner is not a young-earth creationist. The work by Sir Ronald Fisher that Dr. Spetner references with regard to mutations and probability is: Fisher, R. A. (1958) The Genetical Theory of Natural Selection, Oxford. Second Revised Edition, New York: Dover.