For every random "expert" who is right there are likely millions of wrong ones.

In tech terms, it's like the "idea" guy. We need to have some level of curation, that yes, will be wrong at singular time points. The point of a process is continual improvement, not being perfect at every singular point in time.

That includes studies too. The process takes time. Unfortunately the government and public have to act ahead of time. And the media of course has to make their $$$.