This $1,200 autonomous contraption, which purports to vacuum and scrub your inground pool with advanced sensors, is clearly marketed as a status symbol for the overachieving new Pescadero retiree. Owning one signals to the neighbors that your life is so polished, even your algae removal is technologically advanced. However, due to the constant sediment bloom and the local tradition of using large driftwood logs as impromptu diving boards, this sophisticated gadget will inevitably get stuck and become an expensive, wet piece of abstract garden statuary.