Well stated. Maybe if I had taken more time to clarify my point, it would have helped my case. When someone says that 4 out of 5 dentists recommend Crest, I'm going to consider the source, and at least do a little homework before buy some. When my mother had spinal surgery a week ago to have four vertebrae fused, all the decisions were left up to me. Am I qualified?...hell no, but I was able to spend enough time researching the surgery (there were options), surgeon, hospital, etc. to help determine what was in her best interest.
When evidence is provided, even if simply referenced, it can be poked, prodded, and validated or not. But I won't fall for an appeal to authority.
There was a similar article in fivethirtyeight.com just a couple days ago with regard to vitamins, and how many of the studies indicating that everyone should be taking a daily multi-vitamin have been improperly executed. And yet, everyone assumes we all should, or that it's "common sense", or that they'll take one just to be on the safe side.
For many years, it was a "good sounding theory" that peptic ulcers were caused by stress or spicy food. It was a consensus, with little evidence, until one man proved them all wrong. http://en.wikipedia.org/wiki/B...
For years, we were all told that eggs were good for you, then we were told that they're bad, and what do you suppose the consensus is now?
So, yes there are certainly many instances where we just have to go with the odds, and what the current conventional wisdom is. But, it also needs to be tempered by a knowledge of what the current state of research is in that area.