In the year 2039, we (humans) are partly scanners. People walk with 3d scanning beams coming
out of their eyes or other parts. https://jukkasoft.wordpress.com/2009/05/29/future-part-xxiii/

Steps to between now (2020) and 2039?

• mobile phones have a camera (y 2003) Ericsson Z1010
• mobile phones start shifting into “permanent” wearable device, like Google Glass
• other wearable devices emerge alongside mobile/Glass hybrids (health, fitness products)
• no camera needs in fitness gear, though? except… X, Y and selfies!
• embedded cameras improve in quality
• RAM (storage) improves in capacity and density, enabling smaller and more fashionable devices
• digital signal processors improve for making better vision systems
• ergonomics
• product design
• privacy laws in various countries
• society’s trends
• general attitude towards being filmed, and/or carrying a camera
• lead users – “advocates”
• anti-lead users – “nay-sayers”
• use cases? what real benefit would those “scanning eyes” have?
• do they outweight the costs and hindrances
• evolutionary game theory simulation