The good thing about knowing that you don't know the answer - if you're honest about it - is that you're always on the lookout for people who are smarter than you. You just never know where you're going to find them.
The reality, I believe, is that all change starts small. The big picture is just too unwieldy, too incomprehensible and seemingly immovable. But give us something individual, quantifiable and personalize-able and, suddenly, our perspective shifts to the one.
That's what we're focusing on at Not Impossible Labs, looking at problems or needs that can be solved through hacking, modding, programming, whatever, so it helps one person first but has the potential to help many others.