The Big numbers game: Fine Tuning

The big numbers game: Fine Tuning

Creationist fine tuning claims are incomprehensible. I know certain physicists argue for cosmological fine tuning (I’m not sold, for reasons I may discuss later). I believe the claims we’ve seen lately are far removed from any serious claim of fine tuning, and reflect a lack of comprehension of physics or basic math by those that use them.

Here’s a typical claim: “The force of gravity is determined by the gravitational constant. If this constant varied by just one in 10^60 parts, none of us would exist.” (1). You will find this claim repeated in the UD comments section, and even their own glossary of definitions (2-5). Creationists love it, because the big numbers, to them, mean impossible, therefore God. Right?

But wait. Humans have only measured the gravitational constant “big G” to parts per million accuracy (with variations between measurement methods at hundreds of parts per million (6)). So, using Chem 101 terminology, the statement above says that we know a constant to about 6 significant figures, but if the value was different at the digit 54 decimal past the frontier of human understanding, we’d be hosed. Where did this precise value come from? What math-a-magics creates precision from fine air?

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