in the future, there will be cars that have computer generated images on your windshield instead of what's actually there. satellites will broadcast real time footage in computer graphics straight to your car, with loads of information on traffic, weather, or what have you. there will also be a third person lens that you can view your driving in, so that you can see a car coming around a corner or wherever that you normally would not be able to see. no more blind spots. there will not, however, be cars that drive themselves. man always needs to feel like he maintains control over everything. handing that control of a vehicle over to robotics is the instant robots take over the world. though the technology for robot-driven vehicles will be available, it will not be implemented. also, we will not ever fully conquer gravity. the materials that we were given to work with here on earth are far too heavy, pollutant, expensive, and scarce for the ability to have citizens fly their cars in the sky at cheap cost. though we have airplanes that fly and space shuttles that launch into space, think about just how heavy all of those things are, and how many toxins and what not are released into the air when they are used. eventually, mankind will reach a point in their existence where they can no longer generate enough power to accomplish what they desire, i.e. lifting hundreds of tons into the air. you would probably need something like the entire world's capacity of energy to accomplish such a feat, and i REALLY don't see all the other parts of the world being too happy with that idea. so these are some ideas that i came up with while i was high. what are your guys' thoughts?