The holographic universe proves that the physical world we believe is real is in fact illusion. Energy fields are decoded by our brains into a 3D picture, to give the illusion of a physical world.
The perceptions we observe may well be coming from an artificial source.
Suppose we could take our brain out of our body and keep it alive in a glass jar. Put a computer in which all kinds of information can be recorded. Transmit the electrical signals of all the data related to a setting such as image, sound and smell into this computer. Connect this computer to the sensory centers in our brain with electrodes and send the pre-recorded data to our brain.
As our brain perceives these signals it will see and live the setting correlated with these.