Full Immersion_(virtual_reality) could still be decades away. Unless...?
https://en.wikipedia.org/wiki/Immersion_(virtual_reality)#Types
https://medium.com/tech-topics/how-close-are-we-to-full-dive-vr-20e128fd1f19
https://elarasystems.com/full-immersion-vr
https://en.wikipedia.org/wiki/Immersion_(virtual_reality)#Immersive_virtual_reality
https://en.wikipedia.org/wiki/Cave_automatic_virtual_environment
Of course Plato wrote about the allegory_of_the_cave a long time ago.
https://faculty.washington.edu/smcohen/320/cave.htm
Then make the jump from an ancient cave to an IMAX#Theatre or a planetarium.
https://theculturetrip.com/north-america/usa/articles/12-astonishing-planetariums-you-have-to-see
https://www.linkedin.com/pulse/virtual-reality-planetarium-patrick-mcpike
https://informal.jpl.nasa.gov/museum/360-video , https://www.es.com/digistar
https://creativeplanet.pl/en/services
Then think of a hybrid of IMAX#Virtual_reality and a VR Planetarium.
https://en.wikipedia.org/wiki/Allegory_of_the_cave#Influence
https://en.wikipedia.org/wiki/Immersion_(virtual_reality)#Immersive_digital_environments
https://en.wikipedia.org/wiki/Maurice_Benayoun#In_virtual_reality_and_augmented_reality
At a certain point some people might start to ponder that the Cosmos is in the equivalent of someones Planetarium.
The Flammarion_engraving from 1888 is a fascinating depiction of a person that has been able to see beyond the realm of the cave, theater or planetarium. Nature and technology on a higher plane of reality. https://en.wikipedia.org/wiki/Camille_Flammarion#Quotations
Then it becomes a case of how vast is this cosmic projection of space and time? https://en.wikipedia.org/wiki/Spacetime
https://www.forbes.com/sites/startswithabang/2019/03/15/this-is-why-the-multiverse-must-exist/?sh=a21ae736d086 , https://www.youtube.com/watch?v=lVvcOQk6G0Q
https://www.space.com/18811-multiple-universes-5-theories.html
Whether there are many or its just the Universe, this world seems to be part of an interactive recording and projection of data. https://en.wikipedia.org/wiki/Universe#Physical_properties
https://www.scientificamerican.com/article/our-improbable-existence-is-no-evidence-for-a-multiverse
https://en.wikipedia.org/wiki/Shape_of_the_universe , https://en.wikipedia.org/wiki/Spacetime#Introduction_to_curved_spacetime
https://thedigitallabyrinth.blogspot.com/search?q=The+Nature+Of+Reality
https://thedigitallabyrinth.blogspot.com/search?q=The+Simulation+Hypothesis
