Hinkley C or a journey from Exeter to London that takes 20 minutes?

California-based start-up Hyperloop One has unveiled a feasibility study for building a [300 mile] high speed Hyperloop transport network from Finland to Sweden for around £16.2 billion ($23 billion). The journey, which currently takes a 16 hour ferry journey or an hour by plane would take 28 minutes.

This would be the equivalent of a journey from Exeter to Norwich, 5 hours by non-stop car or also an hour by air.

http://www.dailymail.co.uk/sciencetech/article-3676845/Is-Hyperloop-coming-Europe-Super-fast-transport-cut-310-mile-trip-Helsinki-Stockholm-28-minutes.html