Its not the same. Glasses perch on your nose. VR headsets have to have the edges pushed up against your skin to avoid light bleeding in from outside. Its great for thirty minutes or so but mainstream consumers are not ever going to use these headsets as the primary means of watching movies or bingeing on boxsets.

The parent comment said “no matter how thin or light they get”.

I think this was more a reference to the current ski-mask like VR goggle rather than a lightweight think like Google Glass (or indeed, a regular prescription glass or sunglass). Having my fair share of VR hours under my feet, I would agree: it's tiring !

The parent comment said “no matter how thin or light they get”. I’m just disputing that.

We are at least a decade away from bringing this to glasses-weight, but how do you solve the light-blocking in that form factor?

Think really heavy ski goggles, not eye glasses. 20 oz, not 2 oz, and clamped to your face, not resting on the bridge of your nose.

The parent said “no matter how thin or light they get”.