Dr. Hotez believes that once he nails him down and makes his good points, then RFK Jr. would just change it to another thing. He actually gave some specific examples of where, in his mind,RFK Jr. used to make a claim of some element of the vaccinations being bad, but then he changed it to something else. It's probably true that people like to move goalposts. But if science doesn't learn to persuade honestly, it actually becomes useless. If you can't persuade anybody to believe you, it takes the entire value of science off the table.