Thank you RiderOnTheStorm. I'd like to bitch about everyone waiting on AFC before reading my books, but I'm one them! Given the complexities of causality, I would think they would have to make the error every once and awhile, or even regularly, depending on how far they press their analyses. But then, they would also incorporate the possibilities of this into their contingency plans. You could say this is partly why they're so obsessed with isolation. view post