The title itself is really bad - trial and error is the only way science works. You observe a cause and an effect, propose a theory, and tweak it based on more causes/effects. There are very few instances in the history of science where someone without any contact with actual experiment sat in a closed room and came up with an a theory that was eventually proved correct. If the author of the article was alive in the 1920s-1950s, and observed the chaotic scientific development of Quantum mechanics, he would have the exact same opinion that he has of the current state of medicinal research.

I am curious to see if the author has any actual suggestions on how to do science.