Oh I do believe that - that we know far less than some people would admit to. Between my ex-wife, my own son, and my own mental health during some of the stress I've been under I know full well that even most of the most considered approaches to these things seem to be based on best guesses and evaluating the progress and outcomes.
Off to do some reading on ADD - I'm really curious now if that really is me. I don't want a label as such - but I'm a firm believe that if you know something is "wrong" - and I don't like that term because this is just how I am - and you acknowledge it, then you can address it. Perhaps instead of wrong I should say "something could be improved".