The obvious example is a Taxi service with self driving cars, purchasing new cars with profits and expanding it's market without any direct human input.
But that's going to take a long time.
What could a smaller scale DApp do to effectively function in the physical realm without need for human support (once it's setup)?
What are some examples that might be possible in the short term. They might not need to be very useful, but just act as POC. I imagine there would need to be a way to prove that automated machines are controlled by the DApp without any outside interference. Will that even be possible?