When Elon Musk conjured up the idea for the Hyperloop, he was, as he is now, quotably preoccupied with getting to Mars. So Musk open-sourced the idea.

On Wednesday, Hyperloop One became the first company to show off a successful Hyperloop propulsion test. In front of the media, the pod platform prototype whizzed across an un-tubed, half-mile track in the Nevada desert for five seconds at a little under half of the speed that the real Hyperloop will travel -– but it worked! And don’t think Musk didn’t notice.

“Full credit to the team that’s doing this. All happening without any help from me,” he wrote on Twitter.

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