On boiling frogs
If you drop a frog into a pan of boiling water it will jump out. Frogs aren't stupid. But if a frog is sitting in a pan which is gradually heated it will become soporific and fail to notice when it boils to death at 100 degrees. This story has been told many times, not least by the leading management thinker, Charles Handy, in his best-selling book The Age of Unreason. Unfortunately, the story isn't true. It was put about by 19th-century experimenters, but has been refuted several times since. Never mind: it's a good metaphor, and metaphors aren't supposed...