[notahacker]

To be fair, Musk's original paper advocating the concept was structured as a criticism of the supposed inefficiency of rail alternatives, and was heavy on deliberate cost underestimates and light on physics. So it's not exactly unreasonable that most critiques start off with the economics.

This critique, however, raises quite specific physics-related logistical reasons why Hyperloop is a ludicrously impractical solution for most forms of freight and uneconomical for the rest. Things it doesn't mention, even implicitly, include regulation, government and lawyers. Perhaps you'd get more out of these hyperloop criticisms if you read them?