[amethyst]

Another key requirement would have been computer-aided flight control systems. The only reason the B-2 can remain stable during maneuvers is thanks to its fly-by-wire system that translates the pilot's directions into control surface adjustments that achieve the desired results, and continually adjust those controls faster than the human pilot can react.

[blamazon]

The curious may find this wikipedia article a good jumping point down this rabbit hole:

https://en.wikipedia.org/wiki/Relaxed_stability