> It really bothers me when people trust more in word-of-mouth than they do in science. Me too. Still I have some sympathy for them, because science is not on-

> It really bothers me when people trust more in word-of-mouth than they do in science. Me too. Still I have some sympathy for them, because science is not on-off type of thing. You can't just research if particular substance is safe or dangerous. You must know what you are searching for. You must figure out a level for "safe exposure". Thus it can take long time (even decades) before substance x is found and agreed to be harmful. Considering the history of human evolution and huge changes in our diet and chemical environment in the last 50 years, it's perfectly acceptable to be skeptical, until proven otherwise. Bisphenol A makes good example.