I don’t want to ride a donkey down there, but also am car skeptical. Maybe high speed commuter rail in the canyon could be artfully and sensibly done for our weird superfuture. I bet there would be amazing archaeological and geological discoveries in the construction process! With the rail system in place it would be foolish not to build some kind of sustainable coworking space with integrated living quarters and it would be trivial to stock a bodega with wholesome, all-natural foods and beverages. Hiking supplies too!