This is a school boy error. Scientists know that the chances of life just occurring by time and chemistry alone are so unimaginably remote as to be impossible. While the basic compounds are understood, the origins are not . “ Science will never solve the mystery of nature. In the final analysis we are part of the mystery we are trying to solve .” - Max Planck. I rather suspect he didn’t have the casual approach that you adopt. Even natural selection requires an intelligent force behind it.