This is no small feat; science today still grapples with the difference between correlation and causation, and Koch’s postulates, in slightly revised form, continue to be used as criteria for valid research. The mantra of “correlation is not causation” is so pervasive in modern science as to be a cliché, but it is nonetheless commonly overlooked, as overeager researchers (or overeager chroniclers of research) make a wishful leap from a correlation between a disease and an agent and an actual causative relationship.
