He added that for frequent business travelers, this could quickly get them from city to city without a trip to the airport.
"The other consideration is that much of the energy used could be harvested from solar cells lining the outside of the tube," said Olds. "The science behind it is sound. Assuming it can be built, it has the potential to move more people faster than any alternative — and at a lower cost as well."
Zeus Kerravala, an analyst with ZK Research, said once the project gets beyond the funding and building stage, there are some strong positives to the idea.
"I think a faster mode of transport would be well received," he added, calling Musk "futuristic." "Frankly, I think it would great. Anything to save on travel time would be welcomed. I think initially there would be some concern, but once people started using it, I'm sure it would be mainstream."
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