Hyperloop wasn't a failure at all, it did exactly what it was meant to; kill off attempts to get more railway projects started in California.
There is no evidence it was meant to kill off new railway projects, nor any evidence that it did.
Elon was just paraphrased in a book about how he thought the particular California HSR project was a boondoggle (a view shared by many) and he published an idea for how to do it better.
It wasn't "how to do it better" it was an attempt to reframe the entire question of whether medium-distance mass transportation should exist.
At peak times, the line carries up to 16 trains per hour in each direction with 16 cars each (1,323-seat capacity and occasionally additional standing passengers) with a minimum headway of three minutes between trains.
Not exactly "a thousand people every minute", but I agree with the jist of your post. High speed rail has orders of magnitude higher capacity.https://youtube.com/watch?v=_OffnEl-kQA
As far as I know, the origin of this claim comes from
https://twitter.com/parismarx/status/1167410460125097990/pho...