Think of fly by wire aircraft.
There are anynumbers of computers each coming up with an identical solution, which then moves a control surface to the required position. If one of the computers fails, the overall supervisor, and its backup, spot the different solution and reject that one. To make sure these sytems are safe, different software engineers write the software, so a systematic fault cannot occur. All this means big money. My soultion to fly by wire, would be add a bit of good quality string between the control surface and the pilot.
( Bartleby A dead man on vacation, Mon 5 Sep 2011, 13:10, 1 reply, 14 years ago)

Yeah, I've got a basic understanding of flight control.
Unfortunately your bit of string would immediately be the cause of a huge crash, due to modern planes being so aerodynamically unstable the pilot wouldn't be capable of flying it.
( Kroney, Mon 5 Sep 2011, 13:12, Reply)

That is so, it was a crap analogy.
Apply the reasoning to shutting down an oil storage depot, say Buncefield.
( Bartleby A dead man on vacation, Mon 5 Sep 2011, 13:15, Reply)