In 1962, engineers spent more time arguing over propulsion than actually...

https://www.ready-bookmarks.win/in-1962-18-nobel-laureates-locked-horns-over-chemical-vs-nuclear-rockets-for

In 1962, engineers spent more time arguing over propulsion than actually building rockets. The debate between nuclear, chemical, and electric engines wasn't just technical; it was a battle over the future of spaceflight