I hope we eventually get phased array optics on smartphones (or just in general). Imagine the whole back of the phone is a sheet of nanosized optical components

I hope we eventually get phased array optics on smartphones (or just in general). Imagine the whole back of the phone is a sheet of nanosized optical components able to determine the angle of incoming photons. Off the bat, that could capture 3D environments, but with a large enough sensor, you could digitally zoom in basically indefinitely. Phased-array optics exist for larger wavelengths, but it’s likely they’ll eventually exist for visible light as nanomanufacturing improves.