The average science PhD is two standard deviations out from the population mean in terms of intelligence, has spent ~8-10 years learning the fundamental background required to understand their field, and is deeply immersed in the culture of science. And these are the 'newbs' of the scientific community; the scrappy up-and-comers who still need to prove themselves as having valuable insights or actual skills.

So yes, for all practical purposes the barrier to genuine understanding of scientific theories and techniques is high enough that a layman cannot hope ... (read more)