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> True. But the market is tiny Keep in mind the market for automobiles was tiny before the automated production of the Model T, and the market for the personal

• tuatoru 5y ago
  > the market for automobiles was tiny before the automated production of the Model T I think that's a false analogy. Automobiles are a lower-latency, cheaper to operate, cleaner, faster substitute for the horse and cart, which many people already had and many more desired. There was a big market and it had high price elasticity of demand. The analogy here would be for hypersonic point-to-point travel over large distances on the Earth. It's not at all clear how big or elastic the latent demand for that would be. It is clear that dumping a lot of water vapor in the stratosphere would have climatic consequences.