The Probability Of A God Is "Undefined"

It is easy to find religious apologists, and even a physicist, positing "evidence" showing that there probably is a god.  These attempts usually use some sort of mathematical calculation, like a variation of the Drake Equation or Baysian Analysis for example.  However,  all of these attempts ignore the fact that there is no evidence for any god.  Therefore, the denominator in the calculations is zero (0).  Whenever a number is divided by zero, the results are "undefined."   In other words, the results have no meaning.

Improbability

"We can unconsciously increase the odds of a “rare” event occurring by post hoc analysis, open ended criteria (wiggle room), and mining large sets of data. In fact, we are inherently good at doing all of these things. We might call the overall process pattern recognition. Our brains evolved to make connections, to see patterns, and then to imbue them with meaning."

The Improbability Principle

Bayes Theorem 101

"Bayesian analysis is an important concept for any scientist and skeptic to understand. It is extremely practical and is already used (whether or not it is explicitly named) in professions that need to deal with probability in a practical way, such as in medicine.

"Bayes Theorem makes explicitly clear several skeptical principles, including the need to consider predictive value, the impact of false positives, the need to consider an alternative hypothesis, and the need to put statistical significance into its proper context.

"In many ways, a Bayesian approach to knowledge is a skeptical approach."

http://theness.com/neurologicablog/index.php/what-is-bayes-theorem/

BTW, it can't be used to support claims of miracles. (link)

Defending Prior Probability

"If you think your pet theory is unfairly being rejected by considerations of prior probability, you can whine about prior probability, or you can create high quality evidence that convinces the skeptics."

Prior probability is one area in which science-based medicine is in disagreement with evidence-based medicine.

http://theness.com/neurologicablog/index.php/in-defense-of-prior-probability/