by Tim Sommers
In “Calculating God,” Robert J. Sawyer’s first-contact novel, the aliens who arrive on Earth believe in the existence of God – without being particularly religious. Why?
There are certain physical forces, they explain, that make life in our universe possible only if they are tuned to very specific values. Which they are. We are here, after all. But there’s no physical reason that the values need to be set the way they are. The aliens have concluded that someone, or something, set the values of these parameters at the beginning of the universe to insure that life would come into existence. That something they call God.
Here’s a much earlier, very different version of this argument. If you were hiking through the woods and you picked up a shiny object that turned out to be a small stone, it would probably not occur to you that it might have been made by someone. If it turned out to be a watch, however, you would immediately conclude that it had been intentionally created. So, is the universe more like a stone or a watch?
This argument from design was an especially powerful argument for the existence of God when very little was known about biology. The complexity of living things puts watches to shame. But then Darwin came along and used evolution to explain how such diversity, complexity, and apparent design could come about without a designer.
Just when the argument that the complexity of our world could only be explained by God seemed lost, a new, purely physical reason to think that the universe was designed appeared. The one the aliens embrace.
“A striking phenomenon uncovered by contemporary physics,” Kenneth Boyce and Philip Swenson write in their forthcoming paper “The Fine-Tuning Argument Against the Multiverse,” (Philosophy Quarterly) is that many of the fundamental constants of nature appear to have arbitrary values that happen to fall within extremely narrow life-permitting windows.” Read more »