So he believes, many do. Does not mean any of them are right. Nor does it prove them wrong. So far though we have absolutely zero evidence of other life other than life here on earth. But the universe is a big place, and the number of universes are unknown. Given the magnitude of territory would seem to increase the odds of other life. But that could also stem from us being unable to comprehend that there would be that much space devoid of other life. To many that is an even scarier proposition then to believe that other life exists in the cosmos somewhere.
And its scarier because...people are afraid that the Bible and God are real as opposed to our lives being a natural result of mixing lifeless chemical elements?