My dream world is this world. In about 2 decades we'll have the technology to emulate believable virtual miniverses in which we'll be able to do whatever we please. Kind of like the "full-dive" helmets from SAO.

There are technical difficulties, but brain-machine interfaces are getting better and better and I believe we'll also have access to much easier learning in the future by downloading knowledge straight into quick-access memory banks (there's already a prototype for memory cards in clinical trial for Alzheimer patients). So....yea, unless we get annihilated by AI, I'd say that we'll all get the possibility of acquiring hardware that can run any realistic / unrealistic simulation of a small scale universe.

Personally, I'd feel fully comfortable knowing I can satisfy all my sexual fantasies in a way that feels as real as it gets without having to hurt real people.