This video is 20 minutes of the best YouTube footage from 2015 of extreme sports, marriage proposals, cute kids, funny animals, fast cars, groovy dancing, dronies, and more slow-motion GoPro footage than you could ever want to see in one lifetime. I've linked to a few of these videos, but generally my list of cool videos of the year would be a bit less X-TREEM. If you want to watch all 506 videos in the compilation, check out this playlist.