Tatally agree with Dave and others! In this hobby (and not only here) the only way to "know everything" is to limit your scope to whatever one already learned. But this is not a true knowledge. Sooner or later person like this will be "outdated". Unfortunately for "us chickens" this kind of person(s) can present real problem, and can become a "nightmare" for those who just sturting and REALLY wants to learn something.

As Einstein (?) once said: "the only think I know for sure is that I don't know anything".

PS. I guess another part of "I know everything" is "watch this...." [>:] These two phrases MUST go together.