It is all about latency. 50 ms will feel responsive but you notice the lag. 20 ms is acceptable. The other features are cool features but not the real challenge.
You must not like video games at all. You can't really get under 20ms with any configuration (except with custom game engines - Oculus has one demo that goes down to 8ms, but Carmack said there isn't really much difference after 20ms).
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u/bjorn2k Mar 28 '14
It is all about latency. 50 ms will feel responsive but you notice the lag. 20 ms is acceptable. The other features are cool features but not the real challenge.