It's been 40 years since Neil Armstrong and Buzz Aldrin landed on the moon -- the "giant leap for mankind" that has set the standard for all the scientific breakthroughs that have followed it. (As in, "We put a man on the moon, but Apple can't make a laptop battery that doesn't overheat?!")

In the spirit of the anniversary, we at Youth Radio wonder what great innovation will define the next  40 years. Will we colonize other planets or drive flying cars? Will we develop an HIV vaccine or live in harmony with robots? Who knows? But one thing's certain: it'll be our generation living in that brave new world. So it should be our generation that thinks up humanity's next great accomplishment. Here's what we've got so far: