then economy drives industry to want to eliminate the cost of routing control cables/rods and hydraulic power to each flight control, enter fly-by-wire.
4) An autoflight/flight control computer/autopilot system must always fly the fly-by-wire aircraft. there is no manual control to back up to.
Totally false statements. For your info fly-by-wire doesn't eliminate hydraulics. You have a long way to educate yourself about FBW and current flight control systems.