I have this sketch for a sculpture piece that is similar to this and thought that it might make a cool, if not wholly impractical board design. The idea was of two elements of the shape sliding past each other, which put me in mind of two sides of a fault in the earth's crust sliding past each other. Now technically that is known as a strike-slip fault, similar to the San Andreas fault in Southern California. The fault referred to here is the massive Cascadia subduction zone, which is known as a mega thrust fault. But same idea; huge land masses getting hung up on each other, building up massive amounts of potential energy, until one day- WHOOSH! You have the earth changing, life altering 500-1000 year earthquake that we're extremely overdue for here in the Pacific Northwest. It's not the happiest of dangers to live under, but looking on the bright side of it: we have these amazing stratovolcanoes, we have the Cascades and the Olympics, we have prehistoric looking sea stacks on the coast and we have rich volcanic loess in the Palouse.