Never before in human history has learning the state of the art in any field been freely accessible to anyone.Really? I'm working in Mumbai right now (outsourcing has apparently gone dyslexic, as Russel Peters said). I'll be in rural Karnataka this week, and I'm pretty sure they'd disagree that learning the state of the art in any field is freely accessible to them. And there's 65 million people in that (relatively small) Indian state.
there have never been so many helpful people giving away so much knowledge.
I definitely agree with that, which is why it's hard for people who used to make a living transmitting knowledge. Oh, and a lot of the knowledge being given away so readily includes "how to violently undermine the global capital system that made this information dissemination possible".
There has never been so much money available for investment, and investment has never been this founder friendly.
Were you working in 1998? I remember those days...
There has never been a market of this size this freely reachable, if you have good ideas that are sticky and sharable.
I'm very lucky in that I get to use my talents for low-level programming to work on water purification systems. Mumbai has 10,000 deaths per annum (yes, 10,000) from waterborne illnesses, and it's probably the most developed city in India. But this isn't a problem that needs cleverness; it just needs a whole lot of people to do a very lot of hard, low-paid work. Water in particular gets loaded into the "entrepreneur" model all the time, but it doesn't really fit. You need a lot of people to build a lot of public pipes and faucets, and you need a social contract.
Gates has been asked why he doesn't work on the global digital divide and usually just says "Maslow", and I think he's got a point.