Earlier quoted context omitted.
Computing and testing has come a long way since the Gemini days. We now have aircraft (particularly military fighters) that are literally uncontrollable without the computers.
Those control systems only work within certain preprogrammed constraints. They are generally incapable of handling unexpected situations outside of the design limits. Computerized fly by wire systems still depend on a pilot in the loop, especially in the case of a mechanical failure.
https://www.airspacemag.com/military-aviation/f-35-faces-mos...