Flying is relatively simple... why? Because you don't have to plan for the eventuality that an obstacle is on the tracks, or a 3rd world country fishing boat is crossing your shipping lane.
You sure do (if you'll excuse my Mandarin)
For 'obstacle' substitute 'uncontrolled intruder'.
For '3rd world country fishing boat' substitute '3rd world country intercepter'.
There are only a few cases where pilots saved the day because of malfunctioning computers. 60% of all crashes are still caused by pilots. You have to get your statistics straight, chap!
Lots of cases where pilots saved the day because of malfunctioning computers.
Primary nav goes down - switch to backup/ground aids/DR.
Engine control packs in - shut down or control manually.
Pressurisation, electrics etc etc all computer controlled and all can fail.
744 used to occasionally require a complete power off and reboot (on the ground
)
As an engineer and pilot I don't consider myself a Luddite (had a few disagreements with the 'Standing up in a hammock' brigade) but . .
remember Apollo 13