Konrad Zuge, pioneer in computing science, imagined the hypothesis that the Universe was digital computer (1967). That theory, later developed, proposed that all reality, the Earth and the rest of the universe, could be artificial just like a computer simulation.
Could we be living within a computer simulated life controlled by someone else? Is this reality or an illusion?
“An illusion, no matter how convincing, is still just an illusion” – Total Recall, 1990.
In Plato’s “Allegory of the Cave” we face the same dilemma, defending that our reality could be just an illusion. Similarly, in ancient China’s Zhuangzi texts we find the passage: “Zhuang Zhou Dreams of Being a Butterfly”.
The author wonders if he was the man dreaming of being the butterfly or the butterfly dreaming of being a man.