You're probably not too far off from what will eventually become reality. Perhaps that's Apple's angle with the AR/VR headset it supposedly has in the works -

You're probably not too far off from what will eventually become reality. Perhaps that's Apple's angle with the AR/VR headset it supposedly has in the works - if you've got your headset on, you can unlock your devices, and if you don't, you have to manually unlock devices via a password or PIN or whatever.