Comment by rspicer

I agree that 6.5ft^2 is probably too small for a good RDW experience based on the gain numbers I'm familiar with. The tracked volumes of the experiments I was a part of were all on the scale of ~15-20 ft square. (I'm not a researcher, really, but I was a developer at a lab that did some RDW research -- for instance, https://dl.acm.org/doi/abs/10.1145/2931002.2931018). There are some tricks that the literature suggests could help (forcing the user to turn >360 degrees in place, exploiting change blindness to get people to accept non-euclidean spaces, etc) but I believe it's not controversial to assert that the user is going to realize they're not walking straight if someone tries to get them to walk a circle with radius ~3ft with traditional RDW cues!