Perhaps Thiel, Arrington and the author are taking too much of a top down view of the issues. To stick with Thiel's hyperbole, I think we don't have flying car

Perhaps Thiel, Arrington and the author are taking too much of a top down view of the issues. To stick with Thiel's hyperbole, I think we don't have flying cars because we still haven't fixed the issues with the road bound ones. Its great to have grand aims at revolutionizing the world, but lets not forget the big impact something as small as 140 characters can have. There are third world countries where entire economies have grown out of the ability to text message. Only a few years ago we saw entire swaths of the Middle East get big quality of life improvements thanks to wall posts and tweets.