Early in the pandemic, University of Washington professor Carl Bergstrom established himself as a coronavirus hawk, defending Britain’s Imperial College model that predicted up to 2.2 million American deaths and arguing that the health-care system would be “overrun.” During the initial lockdowns, Bergstrom warned against “kids hanging out by the lake,” criticized Florida for “leaving beaches open,” and mocked leaders who “want us all back in church on Easter Sunday.” Bergstrom’s subsequent conversion to “woke science,” however, was swift and absolute. On May 27, before the death of George Floyd dominated the news, the professor insisted he would wear a...