It should have a multitude of applications where pairing is difficult, but physical presence of the device is necessary. Some applications from the top of my h

It should have a multitude of applications where pairing is difficult, but physical presence of the device is necessary. Some applications from the top of my head. 1. Access to buildings/restricted areas etc. can be made more secure, by using higher data content with animated codes, foregoing the requirement of the device having an internet connection. 2. Transfer data to a large crowd of people, say at a concert, etc. 3. Pairing of devices where one device cannot have bluetooth or other wireless hardware (due to power / security constraints) Honestly, this is another channel of communication between devices and it's exciting.