The premise behind the post is that virtual reality is an exact replication of real reality. The author argues that this will be impossible to create, since the

The premise behind the post is that virtual reality is an exact replication of real reality. The author argues that this will be impossible to create, since the computation required is equal to the computation required to actually make the real reality. I think that the basic premise is flawed: If you want real reality it's already there. Virtual reality is recreating a subset of real reality, accurate to nature or of your own devising, with less accuracy. If you want real reality, just go outside.