I agree. "How" is a difficult question to answer, and involves basic research. "X does Y" studies need a hypothesis, a bunch of test subjects, and some statisti

I agree. "How" is a difficult question to answer, and involves basic research. "X does Y" studies need a hypothesis, a bunch of test subjects, and some statistical wrangling. Far easier than basic research. I'm now at a point to take all statistical studies with a pinch of salt. Molecular studies are more interesting and while micro and may miss the macro picture, are more promising.