To be, or not to be.....well-rounded

Snipped from another thread, I thought maybe it's deserving of its own thread:

Ah the disappearence of the mystical Renaissance Man. I guess we need a definition of "well-rounded."

That's a difficult one to answer, I believe. To what degree must one be versed or familiar with something before it can be added to their repertoire? I know quite a few people who know a little about a lot, but are they well-rounded? They truly know little.

Could lacking certain skills or knowledge be a limiting factor to determine well-roundedness? For instance, if somebody plays an instrument, knows a couple foreign languages, and is a scientist for a job but totally lacks street smarts or an understanding of politics (unlikely, but entirely possible)....is that person well-rounded?

I don't know the answers to these questions, I just toss them out for exploratory reasons.

b