Electric planes vs hyperloop: there will be a cost trade-off. Hyperloop has a per-mile infrastructure cost, so low volume or intermittent journeys will take a long time to become viable.
TL;DR: We need electric planes while we wait for the tunnels to be dug.
2018-09-20 10:22:49 +0000 UTC
the energy expenditure is very high around the sound barrier but after that it gets down again, but anyway then the material and complication gets in the way of going faster so still quite hard to do: <a href="https://en.wikipedia.org/wiki/Supersonic_transport" rel="nofollow noopener" target="_blank">https://en.wikipedia.org/wiki/Supersonic_transport</a>#/media/File:Qualitive_variation_of_cd_with_mach_number.png
