The movie shows an airplame (the MC2) of 10 grams that avoids walls on its own. It's the research area of microflyers of the Laboratory of Intelligent Systems (LIS) of the Swiss EPFL.
The world won’t become bigger, but much smaller. Media technology will disappear from sight; robots will replace them in time. Small airplanes will ensure that we don’t have to go back to retrieve the apple we forgot for along the way; that’s taken care of immediately. Or they can hold things in the air that we now need someone else to hold. What to think of a light-weight screen (think grams) that’s held up in the air by microflyers on a clear day? Or a flag waving without a flag pole? With a lot of things we think it normally belongs on the ground. Soon everything can happen in the air. Soon. It’ll take a year or twenty yet, but it’s coming.