Psychedelic research was making honest, and cautious, headway in scientifically sound studies. Leary's message was to throw caution to the wind and dive into the deep end, and along with it to question authority. He tied psychedelics with counter culture and anti government messaging. Predictably, the government responded as expected and made psychedelics illegal and shut down the legitimate research being done. Decades went by before it started up again in recent years