The author makes a number of logical errors. For example: > To...generate a perfect facsimile of reality down to the last atom would take more energy than the

The author makes a number of logical errors. For example: > To...generate a perfect facsimile of reality down to the last atom would take more energy than the universe has. Right. But the problem is that the only universe we know about is the one that we live in. So if we were we living in a computer simulation, we would have no knowledge of the 'real' universe. Therefore, we could never say with any confidence that there's not enough energy in the 'real' universe to simulate the 'fake' universe.