I hate keys, as I’ve written about many times before. I also hate keycards, and thought it was ridiculous that my office suite requires two separate keycards: one for the building and one for the suite.
Yet in my pocket is a miracle of computing and communications power: a smartphone. My smartphone knows my identity when I swipe the security code to unlock it. It’s capable of very strong encryption and decryption. Why can’t I use my smartphone as a key to unlock my office doors? It sure would be more secure than relying on ancient technology like tumbler locks and keys.