Doug Sharp talks about the left-handed amino acid dilemma, which gives the odds of producing a viable protein with all left-handed amino acids as one chance in 10 to the 123 power. He sets up a comparison between an experiment cranking out combinations of proteins at 400 tons per second to a snail whose job is to move the entire earth to the known edge of the universe and back at a rate of one millimeter in a million years one molecule at a time. The snail wins the race.