Earlier this month we featured a number of critiques of Eric Metaxas’ assertion that recent developments in our scientific understanding of the universe points to the existence of God. Theoretical physicist Lawrence M. Krauss lays into Metaxas as well, asserting that his arguments about the improbability of any planet meeting all the criteria for supporting life makes the “familiar mistake of elaborating all the factors responsible for some specific event and calculating all the probabilities as if they were independent”:
In order for me to be writing this piece at this precise instant on this airplane, having done all the things I’ve done today, consider all the factors that had to be “just right”: I had to find myself in San Francisco, among all the cities in the world; the sequence of stoplights that my taxi had to traverse had to be just right, in order to get me to the airport when I did; the airport security screener had to experience a similar set of coincidences in order to be there when I needed her; same goes for the pilot. It would be easy for me to derive a set of probabilities that, when multiplied together, would produce a number so small that it would be statistically impossible for me to be here now writing.
This approach, of course, involves many fallacies. It is clear that many routes could have led to the same result. Similarly, when we consider the evolution of life on Earth, we have to ask what factors could have been different and still allowed for intelligent life. Consider a wild example, involving the asteroid that hit Earth sixty-five million years ago, wiping out the dinosaurs and a host of other species, and probably allowing an evolutionary niche for mammals to begin to flourish. This was a bad thing for life in general, but a good thing for us. Had that not happened, however, maybe giant intelligent reptiles would be arguing about the existence of God today.
(Photo by Paul Williams)