Is hard. Just dumping some links here for now: Feynman on “cargo cult science”: http://www.lhup.edu/~DSIMANEK/cargocul.htm Feynman on “what is science”: http://www.fotuva.org/feynman/what_is_science.html Ioannidis, Why Most Published Research Findings Are False: http://journals.plos.org/plosmedicine/article?id=10.1371/journal.pmed.0020124 On how subtle it is: http://slatestarcodex.com/2014/04/28/the-control-group-is-out-of-control/ Reinhart, http://www.statisticsdonewrong.com http://...