First off, I enjoyed your article. However, my biggest point of contention is with the suggestion that hallucinogenics can promote scientific discovery or fruitful hypotheses. I'll entertain that it may be possible, but I can't agree that it is probable. As a research scientist and as someone experienced, I can't imagine actually solving a difficult problem while tripping. On the contrary, based on my experience and talking with others, LSD tends to exaggerate the importance of minutia, and makes it difficult to balance the relative importance of components in a whole. In short, little things explode with importance. I can see how this might free up a new perspective, but IMHO creative thinkers do this as a matter of course anyway. You give Einstein's thinking almost as an example of the value of hallucinogenics, but to my knowledge, he broke ground without them. I'm all for investigation of hallucinogenics, and allowing people to ingest what they want, but would you agree that playing up the potential benefits of hallucinogenics might hinder a reasoned approach to them?