I've argued elsewhere that the basic brief of VR/AR was laid out by the Nintendo Virtual Boy in 1995 - the era of the Dynatac. 29 years of continuous development should give you something substantially more impressive than the Vision Pro, much like 29 years has taken us from the Dynatac to folding 4k 5g monstrosities with more processing power than a '00s era CAD workstation but we haven't had 29 years of continuous development - we've had three or so cycles of roughly 8 years each that consist of discovery, development, deployment, disillusionment and disregard.

People will put up with all sorts of ridicule if it's useful; the '00s were full to the gills of douchebags who knew exactly how dumb their Jabra FreeSpeaks made them look. Google Glass went "here's a heads-up display for your life" and the world collectively went "I don't need that, and I definitely don't need the reputational hit this thing is putting on my life."

IF: we needed face computers

AND: the Apple Vision Pro was the first useful face computer

THEN: the killer device is Google Glass.

But Glass is ten years dead, remains a punchline, and led to exactly zero useful spinoffs.