i recall in my high school geoscience class the construction of the d.c. metro lines... it involved a huge ass drill (the scale was literally the diameter of the entire tunnel) slowly churning away dirt and rock with a bunch of doods behind it putting up scaffolding against the newly borne hole so the entire thing wouldn't collapse on them. sometimes the easiest way to get a big job done is just to use big tools. how's that for philosophy?
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