If someone needs information about virtual worlds, like for example, the one seen in Matrix, would that be on topic here?
If yes -- how this should be treated / tagged etc.? Do we treat such worlds and questions as pure SF or do we have special treatment for them?
I'm asking about purely virtual worlds. The one, in which character exists only, when connected to some kind of device, machine, network etc. Plus eventually about dream-worlds. I'm not talking about worlds that someone may call "virtual" only because they're modern / future / new-tech / different than our world.