Our boulders, however long they are with us, may keep a tourist from driving off into the abyss. Like the horse trailer, they have turned the road into a complicated, one-lane affair where participants, including the public bus and the huge milk trucks, freely debate who has the right of way. Erosion, however, is not a process healed by time. Pura Vida may dictate that everyone just get used to the notion of driving around tape-laden boulders for the foreseeable future, but gravity likely has other, more compelling ideas.