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Old 04-13-2018, 05:09 PM   #24 (permalink)
jamesqf
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Quote:
Originally Posted by All Darc View Post
The most efficient transport will be hyperloop, vehicles in vacuum tubes...
That depends on how you define efficiency. Figure in the cost of digging a tunnel - abd not just a simple tunnel, but one that will hold a vacuum - to any & every place you might want to go, and the cost of keeping it evacuated, and suddenly it doesn't look all that efficient.

Consider that the cost of building the 31 mile long Channel Tunnel between Britain & France was close to $1 billion per mile (in current dollars).
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