Emme Hall/CNET

The statistics involved in Hyperloop One's high-speed transportation technology are quite staggering. Zero to 53 mph in a second. A potential trip from San Francisco to Los Angeles in 30 minutes, instead of 6 hours.

After the company on Wednesday completed the first test of its propulsion system, there's a lot of excitement around this new mode of transportation. But, considering high costs and safety concerns, there's still skepticism the concept will ever happen.

We also discuss Google's rumored plans for an Amazon Echo competitor, code-named Chirp, and the search giant's new Gboard keyboard for Apple's mobile devices.

The 3:59 gives you bite-size news and analysis about the top stories of the day, brought to you by CNET Executive Editor Roger Cheng, Senior Writer Ben Fox Rubin and Producer Bryan VanGelder.

Hurtling 700 mph into the future with Hyperloop One (The 3:59, Ep. 44) Your browser does not support the audio element.

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