Assuming you have no car and are stuck wherever you go, why not just move to the South Bay, e.g. Mountain View. It meets all your requirements, plus there's no

Assuming you have no car and are stuck wherever you go, why not just move to the South Bay, e.g. Mountain View. It meets all your requirements, plus there's no scenery to stare at to even get the slightest bit distracted. AND, there's entrepreneurial activity going on 24/7 to keep you motivated. As a side note, I had a couple friends go to Thailand with exactly this in mind, and honestly they didn't come back with much. Beaches can be distracting...