How much of the construction savings are due to the much smaller diameter? He's a prick, but if he manages to build railway-sized tunnels for a fraction of the cost this could indeed be game-changing. Of course I don't think his ego would let him do just that.
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"A couple of years ago, a couple of geniuses put on something called Woodstock Festival. It was a tragedy. Groups recognised that they could go into larger cattle markets, play less time and make more dollars. What they've done is to destroy the rock industry."- Bill Graham
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