"Smart" is so subjective anyways. Personally, I find someone who knows little but is open to new ideas smarter in many cases than someone who might be an expert in an area but is closed off to new ideas. Those people, I might ask for help, say, designing my electron microscope (or high performance network, or quilt design) but I won't ask for general advice.

And then what about street smarts? The ability to experience empathy, to detect emotions and subtle changes in the way people are acting? To be able to connect at a personal level?

Smarts that are applicable only to specific situations I find less "smart" than those skills which may be applied to your understanding of life and your interpersonal relationships. Skills which help you learn more things which are applicable to specific situations fall into the same boat for me.

These are very interesting, but they're like Snapple bottle caps to me.