That's probably obvious to just about everybody, but here's an important question: when does that fully on-demand future come? You'd be crazy to put your bets i

That's probably obvious to just about everybody, but here's an important question: when does that fully on-demand future come? You'd be crazy to put your bets in on-demand if it's still 50 years out. That's where most of the disagreement stems from, and as a result that's the real opportunity for money to be made.