[batiste]

There should be a calm AI voice stating what they should be doing based on some heuristics. Based on angle of attack, engine power and the last recorded reliable speed, I feel a simple system should be able to make projection of the current speed and throw some warning when pilot input are becoming real stupid.

[asmor]

It exists, and it'a called the ECAM. Last recorded reliable airspeed is usually never used, because an upset condition can change it very drastically fast. These systems help resolve upsets way more often then they miss and these engineers did their homework.

Hearing is also the first sense to go when people panic; this flight had the stall warning blaring for over a minute straight and it didn't occur to the pilots that they may not be in overspeed, but stall.

(It is of course not perfect, sometimes conditions become dependent on one another and their order is not always great - see this simulated simultaneous engine fire and engine failure right after takeoff, where flying on your burning engine might be better than turning into a 1000ft glider: https://www.youtube.com/watch?v=ZRbLLO385_c)