It is just that these issues are far more complex than most treat them (as I am sure you know). As such, I only point out the n=1 statements because they don't actually answer anything than to point out there is not a 100% causal effect between a particular choice and a particular outcome.
Successful moderation := exposure below a toxic threshold for the subject.
Each person's toxicity level is different which is why I, like yourself, do not like blanket statements on the issues.
(case studies are valuable for suggesting research directives as well as treatment planning and projections, but not good for estimating variables in a larger population.)
Edited by hyperactive, 15 June 2006 - 10:58 PM.