“Then we could keep making it more expensive until we got to a system that really shouldn’t be practically computable in our universe.”
This is testing the hypothesis that we live in a simulation which is inside of a universe which has laws identical to the laws of our simulated universe.
But of course, if we are in a simulation, the laws of the “real” universe could be entirely different. There might even be a halting oracle in that universe.
“Then we could keep making it more expensive until we got to a system that really shouldn’t be practically computable in our universe.”
This is testing the hypothesis that we live in a simulation which is inside of a universe which has laws identical to the laws of our simulated universe.
But of course, if we are in a simulation, the laws of the “real” universe could be entirely different. There might even be a halting oracle in that universe.