It’s one of the great philosophical debates of all time. Given enough computing horsepower, would we know the difference between the real world and a simulated one? With the cost of bandwidth, computing, and storage dropping precipitously, it’s harder and harder to tell the real from the simulated.
You might argue that to really trick us into believing the world around us was a simulation, each particle the software represented could only consume one particle of computing infrastructure. But isn’t that what the universe looks like? And did I just blow your mind?