nobody will. If a system is equally safe with a single pilot as with two, there’s no reason to keep a single pilot because the safety is provided by autonomy, not by the pilot.

there’s a concept called metastability in physics and math (among others) that might be used as a metaphor here. Imagine a graph with risk on the y-axis and number of pilots (decreasing left to right) on the x-axis.

https://en.m.wikipedia.org/wiki/Meta...-stability.svg

There’s no condition in which two pilots plus AI will be less safe than one pilot plus AI. So the get from two pilots plus AI to the “promised land” of removing humans from the loop, you have to go directly to zero pilots. Otherwise you end up on the hill.