You entirely miss my point. I used the demonstration of unreal engine to show how even today, very primitive today, we are already leaping over the uncanny valley of simulations failing to look like real life. Watch the development of VR, watch the development of videogames and Metaverses, like "Second Life" that has been showing how it's done since 2005, I think. Watch the development of computing processing speed, novel architecture and "big data". Watch the development of devices like the "Neuralink" and it's already extant competitors. Watch the development of ever more profoundly detailed scientific simulations of our universe and its components, based on our known laws of physics.

None of these alone lead to simulated realities that we take for real today, or may actually be real to some, for all intents and purposes. Although even today people experience addiction to these simulated realities. Addiction to video games? But all of these technologies along with some I'm probably leaving out, plus modification to the human mind (a human friendly technological singularity) will lead to genuine realities. And I think we shall all live long enough to experience them. Even somebody who is 105 years old today. But that is a whole other can of futurology worms ;)

This links to an essay I wrote that goes more in depth into my thoughts on the matter if you are further interested.

https://www.reddit.com/r/Futurology/comments/7r42h0/vr_is_going_to_be_like_nothing_the_world_has_ever/