This is a video released by Red Bull on Facebook imagining a mountain biker racing through a series of portals. They're not real portals though, they're CGI. You know, because real portals don't exist. If real portals did exist I'd insist you open one right next to you, open one right next to me, then reach through and rub my belly like I've been a good dog. I haven't been a good dog though, because I'm not a dog at all, I'm a wolf. "In sheep's clothing?" Depends, do sheep wear velvet tracksuits to work on Fridays?
Keep going for the video.
Thanks to Rob, who agrees biking through portals definitely looks more fun than biking into the side of a bus.