SLS — Space Launch System for Nasa. Heavy lift space launch system.
https://en.wikipedia.org/wiki/Space_Launch_System
If you budget a large program for the Bureaucracy, it will cost double the estimates and possibly double the time of development.
No matter how well you plan, budget and execute a plan it will always cost more, take longer and be twice as difficult.
Kinda like an euridation of Murphy’s law.
But then we got more realistic and started multiplying by pi.