Errrm, you are right so long as nothing changes. As soon as anything changes the merrily chugging COBOL becomes a weird frizzie step aunt from an obscure island

Errrm, you are right so long as nothing changes. As soon as anything changes the merrily chugging COBOL becomes a weird frizzie step aunt from an obscure island near Antarctica and, well, stops the chugging and starts jitterbugging. Then everyone does a "what the hell is going on" dance and wheels barrows full of cash into a carpark where "consultants" pour lighter fluid onto them and burn bonuses in a horrifying money sacrifice to the dark gods of bug fixing. After awhile everything returns to normal. Where did you hear the thing about fault tolerance from? Is there a seat at that bar for me?