Technology and workforce are not the limitation of nuclear.
1,054 karma · joined February 13, 2021
https://www.osti.gov/servlets/purl/840500 (page 6, table VII)
Because they are still too big. They must be very small. Fuel efficiency is less important than creating economies of scale in manufacturing.
This is not a launch technology.
Nice write-up!
How is that known? Isn't "dust and gas" also how stars form?