@pluralistic an older example of the same thing: to be gay in the 1970s, in many countries you had to think you knew better than the health authorities, who believed this was an illness you should try to cure.
and then, a couple of years later, the same health authorities ask you to believe that there's a dangerous illness going around that somehow mysteriously requires gay people to limit their sex lives.
knowing which scientific claims to trust is _very hard_.