@sundogplanets a tiny bit of potentially encouraging news: "Musk [said] a reusable heat shield is 'the biggest problem that remains' for Starship....[E]xperts are concerned that [spacex] will be unable to hit the high flight rate needed...for large settlements on the Moon and Mars, orbital data centers, or large-scale space-based solar power." https://arstechnica.com/space/2026/07/despite-recent-successes-rapid-reuse-of-starship-remains-a-tough-nut-to-crack/