Again with the mean scientists!
Using a statistical method called Bayesian reasoning, they argue that the life here on Earth could be common, or it could be extremely rare — there’s no reason to prefer one conclusion over the other. With their new analysis, Spiegel and Turner say they have erased the one Drake factor scientists felt confident about and replaced it with a question mark. —Are We Alone? New Analysis Suggests Life Could Be Extremely Rare In the Universe| Statistics Crush Optimism in Search for Extraterrestrials | Search for Life, SETI | Space.com.