We develop and developed various technologies, all set on opensource so everyone can use it and hopefully prevent the idea from getting patented later. One is the dual-sim usage. You sit on one sim on a stick that has its root-prim on a different sim. This said, you can explore a change of the world you are sitting inside (on the stick that was rotated or moved over it).
We made this work in the Grand Opening of 1Biennale on a massive scale. The theory we presented at HIE.
Now we extended this and called it out-of-sim sitting in two ways. See more at OUTOFSIM.WORDPRESS.COM