Everyone have a look at the NReal Air demo videos and tell me this isn't possible in 20 years of development. It's a bit rough, but it's a product you can buy

Everyone have a look at the NReal Air demo videos and tell me this isn't possible in 20 years of development. It's a bit rough, but it's a product you can buy today, and not at all vaporware. Cramming a Raspberry Pi worth of computing power and battery into the glasses frame doesn't seem nuts for 20 years of development.