John Carmack demos a VR headset at E3 2012
Giant Bomb · Interview · 18 min · 2012 · YouTube title: E3 2012: John Carmack Interview
Why it's here
HN links it as a primary source from the early days of modern VR, showing Carmack discussing his work before Oculus took off.
What it covers
Giant Bomb interviews John Carmack at E3 2012 about his virtual reality head-mounted display prototype. He demos it and talks about latency, depth and focus problems in VR.