re: I had to explain fracking to my wife last night.

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Look up horizontal directional drilling. You’ll be amazed at how flexible steel pipe is over long distances.

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I think most folks envision a perpendicular turn, rather than a long, slow curve.

As to fraccing, I can see how it MIGHT cause a bit of subsidence over a VERY long period of time. I also don't see that doing much harm as compared to the benefits it produces.