Yeah, there are some very speculative markets. Solar power from space, commercial space stations etc. The chances seem relatively low that those would develop into a big market and require a lot of Starship launches. I currently don't see a big space economy on the horizon. Space (LEO) tourism perhaps could be thing to some extent when Starship gets human rated for both launching and landing. Because a Starship could actually deliver larger quantities of people, unlike Dragon or Starliner capsules, but this is still many years away.
