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so all he did was come up with something that's been came up with before?.... This is not a new idea it was proposed a while ago in California also, and someone proposed one from NY to LA a while ago... same concept

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The concept is similar, but the technologies and methodologies are very different. Similar to the experience at SpaceX - others have built rockets before, but not the same way or as economically.

Example: no one else can build 400-700 very high efficiency rocket engines a year. These engines have a throw weight (thrust vs. engine mass) of 150:1 to 160:1 while most others run under 80:1. They're also designed to be reusable.

It's not revolution but high level evolution.

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