The Upgrade

The Hyperloop Concept Is Finally Growing Up

Competing visions for Elon Musk’s technology are coming down to Earth

A SpaceX 2018 Hyperloop Pod Competition team member works on his pod entry. Photo courtesy of SpaceX

The first public test of the Hyperloop — a tube- and-pod-based, sub-supersonic transportation system — was little more than an Erector et-style sled racing along a short strip of track in the parched Nevada desert. And it only…