Once upon a time, a giant cruise ship was about to set off for its maiden voyage. The only problem? The ship's engine wouldn't start. The cruise company tried one expert after another, but none of them could figure out how to fix the engine. Then they asked an old man who'd been fixing ships since he was a young. He carried a large bag of tools with him when he arrived. He inspected the engine very carefully, top to bottom. Two of the executives watched him carefully, hoping