It would be foolhardy to venture technological predictions for Even more so to predict social and geopolitical The most important advances， the qualitative leaps， are the least Not even the best scientists predicted the impact of nuclear physics， and everyday consumer items such as the iPhone would have seemed magic back in the But there are some trends that we can predict with There will， barring a global catastrophe， be far more people on Earth than Fifty years ago the world population was below 3 It has more than doubled since then， to 7
