I mean, these things are probably close to the physical limit for how small and light they can possibly be. Without relying on a tether, there's only so much y

I mean, these things are probably close to the physical limit for how small and light they can possibly be. Without relying on a tether, there's only so much you can do. You have to put some compute, battery, and optics somewhere. The optics in particular will always be fairly large just due to the physics of light and lenses. The only way I can see us sidestepping these problems is by putting the optics somewhere else and using a fiber optic tether. Even then, you still need some optics in the glasses to project onto the display lenses. Maybe someone will figure out how to do a transparent OLED display on the lenses directly. Even then, you've cut the bulk required for optics but you still need somewhere to put the electronics. A tether is really the only way to go if your concern is form factor.