Re: Tech firms are putting huge resources into VR/AR at the expense of everything else
Ten to twenty years from mainstream adoption... that's such a long time frame that I feel that maybe some nuance has been lost from Mr Sweeny's context. Did he mean mainstream like a PlayStation ( common enough) or mainstream like a smartphone (near ubiquitous)? Many of the technological pieces are around two years away and are being developed for other applications (such as Micro LED displays, light-based WiFi etc)
Anyway, outside of Silicon Valley here in my part of England, there's some gentle but genuine interest in VR from some of the people who already have games consoles... a gentle interest in a 'wait and see' kind of a way. And just the other night I tried a Google Cardboard demo with a non-gamer (other than Scrabble in her iPhone) and she enjoyed it - in a way that I've seen the Nintendo Wii be fun in mixed company.
Tl;dr: Some hype, not purely hype.