The 'boiling frog' is a metaphor describing a situation in which people fail to react to gradual, harmful changes, often because the change is slow and not immediately noticeable. The phrase comes from the anecdote that if a frog is placed in boiling water, it will jump out, but if it is placed in cold water that is slowly heated, it will not perceive the danger and will be cooked to death. It is commonly used to illustrate the dangers of complacency and inaction in the face of incremental threats.
