This Escherian Stairwell at Rochester Institute of Technology in New York has an endless staircase that has amazed students and baffled those who've tried to figure it out. These Penrose stairs, designed by a Filipino architect Rafael Nelson Aboganda, with a nod to M.C. Escher, is making everybody scratch their brains out. The Escherian Stairwell is an architectural marvel that seems to violate the laws of physics and basic logic by looping back into itself.
Here's the premise behind the mobile app Cloak: Cloak will scrub the data of your "friends" using their Instagram and Foursquare information (remember, these are things they voluntarily give out) and display them on a map using your phone's GPS. Just like that, you can completely avoid them in real time as they update their information. There's a few problems, of course. Namely, you're only going to be able to avoid people that incessantly update their every move on social media - though to be fair that seems like the perfect kind of person to excise from your life forever.
Then there's another matter entirely, that this is actually kind of a dream program for stalkers. So, uh, double-edged sword I guess? If you ask me....IT'S THE MARAUDER'S MAP FOR MUGGLES.