"I am skeptical of the Holocaust skeptics...the 9/11 skeptics...I suppose that makes me a "believer" in the claims of which they’re in doubt, but "belief" is not a good word to employ when doing science. Scientists do not "believe" in facts of nature and history; these facts just are. We no more "believe in evolution" than we "believe in gravity." Evolution and gravity are simply facts of nature. They exist whether we believe in them or not."