You can file this in the "what might be the next generation of major photographic technological enhancements." It’s the flat lens, and it’s been developed by the Harvard School of Engineering and Applied Sciences. Made of silicon, this ultra-thin lens is totally flat yet functions like a larger, physically convex glass lenses we’ve been using since… well, since the dawn of photography. This, of course, means that lenses could look dramatically different in the future, and we could have super-tiny, super-flat elements that make for super-flat cameras. Hard to know what amazing technological advancements will become practical technology and which will stay for the most part theoretical. But either way it’s exciting to consider the possibilities of a lens that’s measured in nanometers instead of millimeters.