The frustrating thing is that the skepticism always centers on basic physics/engineering problems that clearly have been solved before such a design would break ground. Nobody builds a giant centrifuge and says "Oh I didn't expect such high g forces!"

The areas I'm skeptical about are whether customers will be able or willing to design for 10,000G loads, and what market remains once Starlink can bring 120,000 kg to LEO at once. that fits a lot of small satellite ride shares.