Comparing the theoretical capacity of the Hyperloop vs the High Speed Rail is only one fact to consider. Musk correctly points out the High Speed Rail is in the

Comparing the theoretical capacity of the Hyperloop vs the High Speed Rail is only one fact to consider. Musk correctly points out the High Speed Rail is in theory way more dangerous. And, possibly more significantly, it is just too slow. To expect travel consumers to opt to max-out the so-called High Speed Rail capacity is wishful thinking. The real "high speed" capability of the Hyperloop make it more likely consumers would opt to max out its capacity, at which point more capacity can be added (by adding a parallel loop), and it is still cheaper than the High Speed Rail.