A few years ago, while doing research for a virtual reality program at MIT that I would be running, I donned a virtual reality headset and played a ping-pong game. The game was so realistic that it fooled me. I tried to put the paddle down on the table, but it wasn't there. I began to think about what would happen to humanity if we continued to develop this technology because it was so easy to trick my senses into thinking that virtual world was real.
In my book, The Simulation Hypothesis, I laid out the 10 stages of technology development that would take us to the Simulation Point, where we won't be able to distinguish our virtual worlds from the real world. I came to the conclusion that if our civilization could reach this point, then some advanced civilization elsewhere in the real universe had already done so, and that we are already inside one of their Matrix-like virtual worlds.