<<<I don't know how my computer works, but I can operate it until it goes wrong. Where's the weak link?>>>
I do know how my pencil works and I can balance my checkbook without problem.
Where is the weak link?
IT IS SIMPLE, the weak pilot is the weak link. The pilot must be able to do it all, until the plane is safely on the ground.
Automation can reduce stress and strain in normal ops and assist in emergency ops. This will reduce the need for rest after the flight. BUT a pilot who takes his plane to MAA (max authorized altitude) and can't hand fly it there is fooling himself!