Remember when heart disease was specifically caused by cholesterol, which is the mother hormone produced by your liver? Now it's about triglicerides. First it was about cholesterol plaque buildup in the arteries, and now it's about inflammation of the endothelium within the arteries and veins.
And then there's the Population Bomb that will kill millions through starvation. The diminishing Ozone Layer that would kill billions. The Alcar scare that bankrupted many fruit farmers. We had 9 planets until they decided Pluto was planatoid. Now they are claiming a "possible" huge 9th planet outside the Kuiper belt of asteroids.
The best was the 70's social scientists claiming no inherent differences between boys and girls. That idiocy has been gone for awhile, but just read they're back to it. You only need to be a parent to see the differences. I am.
I could go on and on how often our scientific community has been wrong. I predict Gluten will be proved later to be no threat to average consumer.
I really get a kick from their claims that hydrogen came into existence just milli-seconds after the bang, and yet can't explain why. Then some minutes later, Helium was formed, and on it went with the other elements within their equations. Could be wrong about the time of Hydrogen and Helium, but you get my drift.
Where did the Singularity come from? White board equations will never explain it. There is more to this Universe than will ever be known. And that's why I'm an agnostic.