You're not understanding accommodation well enough.

The short version is, an OLED/LCD has an "infinite" focal length and cannot do otherwise. So by default everything in the display is rendered at the same focal point. You can do some tricks like blurring elements, but these are not responding to the convexity of your eyeball or how your eye muscles are working, so if you look at something that is software blurred it will still look blurry. Even with eye tracking it's still really a hack, and isn't naturally responsive - it's the software reacting to your gaze.

Display based accommodation however renders objects at different focal points. So when your eye changes gaze point and your ocular muscles respond to put your eye at that focus level, the object/s come into focus. It's the reverse of the hack.

Sounds like a trivial difference but is completely different, significantly more convincing and logistically more complex.

Thank you for providing technical information to a thread that is thriving with far too much anecdotal data. Im careful to say noise because in an early technology like VR it is good to have all this discussion and sharing of data but I really appreciate the underlying science more than the anecdotal checkmarks. Anyhow thanks.

I've got a vive. He's greatly overstating the problem it works fantastically most of the time.

I second that. I've got one (kickstarter) and the only thing that triggers the nausea for me is running perpendicular to the direction I'm looking. One of the games I've downloaded has letters and signs you have to lean in really close to read, and I've found no discomfort in that. Maybe it affects other people, though? For me, I'm a little myopic but I take my glasses off to wear the headset so my focusing muscles are a little bit frazzled anyway.

I have a gear, and it's irritated my eyes if I spend too much time on it (the lower resolution doesn't help), but I've never experienced nausea.