Vaccines causing autism seems like a good example. The original studies about this were fraudulent/wrong, and their effects have basically never been replicated

Vaccines causing autism seems like a good example. The original studies about this were fraudulent/wrong, and their effects have basically never been replicated since. Also that of people only using 10% of their brain, since it's more accurate that people use different parts of their brains at different times. No, using 100% wouldn't give you psychic powers or make you superhuman or whatever else some works of fiction and new age mystics might posit.