I'd say that you're talking about a different measure of "return". You could get very lucky and become the world's foremost bag pipes player, but you probably d

I'd say that you're talking about a different measure of "return". You could get very lucky and become the world's foremost bag pipes player, but you probably don't have the likelihood of returns than your average real estate hustler. Luck is probably something closer to the OP's equation. Though you could be right in that certain fields may have a lot more people willing to help you out - perhaps cleantech people are all about making the world a better place, they make more intros, etc. It sounded more like the former than the latter though.