On the thread Impossible Molecular Machines we are being treated to a lesson in probabilities from several creationists. Here's an example of a comment from Livingstone Morford.
By Darwinism I mean the notion that everything we observe in the biological world are purely the result of stochastic processes, and I am critical of that notion.Speaking of stochastic processes, the average number of sperm contributed by a man in a mating process is 100,000,000 (108). That means that every single human is the product of a single sperm cell uniting with a single egg cell and the probability that one particular sperm was successful is 10-8.
On a different topic, I might add that intelligent design proponents need only demonstrate that the odds of a particular biochemical system evolving are 10^-40 or less in order for intelligent design to be a more adequate explanation for the origin of such a biochemical system. This is because there have been no more than 10^39 bacterial cells in the history of life on earth.
This probability of existence applies to each of my great-grandparents.
Johann Betker was born in 1859 in Volhynia in the western part of Ukraine. The probability that he was produced from a particular sperm cell is 10-8. His future wife, Amalie Schmuland, was born in 1868, also in Volynia. This was also an improbable event from the point of view of sperm selection. The probability that BOTH of my grandparents were born is (at least): 10-8 × 10-8 = 10-16.
The same probabilities apply to Thomas Keys Foster born 1852 in country Tyrone, Ireland and his wife Eliza Ann Job born 1852 in country Tyrone. Their two births were very lucky with a total probability of only 10-16. Now, if you combine all four of these great-grandparents you end up with a probability of 10-32. Add in the other four great-grandparents and you end up with the total probability that all eight of these individuals would be born = 10-64. (The real probabilities are much, much lower when you take the eggs into account.)
Since this total probability is a lot less than the total number of bacteria that have ever existed, it follows that God must have intervened somewhere. Two of my great-grandparents must have been designed by God. I wonder which two it was? My bet is that it wasn't any of the four mentioned above because they were all born outside of Canada. It was probably the two grand-parents who were born in Canada 'cause God likes Canadians.