A couple of easy ones: The ability for people to travel to so many places and engage in the human experience in ways they otherwise never could or would. The e

A couple of easy ones: The ability for people to travel to so many places and engage in the human experience in ways they otherwise never could or would. The expansion of humans' radius to get together, be together, work together, exchange ideas, make love, and make families. Because humans were able to be with so many more humans, I would argue that knowledge, learning, and thought, took place at a level that's orders of magnitude greater than it would have been otherwise. And if you subscribe at all to the idea of the butterfly effect, it's impossible to begin comprehending what mankind wouldn't have if the car hadn't existed. Would we have the cure to as many diseases? Would the rate of poverty have declined so profoundly? Would the Internet exist?