What is the rule of throwing a frog into the water to cook?

Warm water can't kill frogs, Murphy's law!

In the 1990s, a female biology teacher in Beijing organized the whole class to do an experiment: students in groups of two or three were assigned to a container and a frog, which was heated with slow fire to make the water temperature rise slowly, reaching the basic condition of "boiling frogs with warm water". The students looked at the thermometer showing the water temperature and the frog in the container with excitement and anxiety. When the temperature rose to 60 degrees, the frog began to jump out. When the water temperature reached 65 degrees, all the frogs in the container jumped out without pulling.

The female biology teacher said: "The frog jumped automatically after the water temperature rose to more than 60 degrees, indicating that its instinctive reaction to the water temperature did not differ greatly because of the speed of temperature change. They are not stupid enough to be boiled to death without running away. You should remember that even if everyone agrees and often tells the truth, it may be wrong. The truth that is generally recognized by society may also be a lie. Everything must be experimented, investigated, thought and not followed. "

The female biology teacher proved that frogs are not so stupid, but she ignored it, but people can be incredibly stupid. The school expressed great anger at the experiment of "boiling frogs in warm water" organized by her, because this experiment was not arranged in teaching and had nothing to do with students' grades. The teacher argued, but buried more hidden dangers. Later, the school found an excuse to dismiss her.

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He thought one of his colleagues was unlucky, and casually said a joke: "If something is likely to be screwed up, let him do it and it will be screwed up", which soon spread. After many years, this "law" has gradually entered the category of idioms, and its connotation has been endowed with endless creativity, and many variants have appeared. "If something bad is possible, no matter how likely it is, it will always happen and cause the greatest possible loss." "If anything can go wrong, it will go wrong." And "smile, tomorrow may not be better than today." The better things are, the more useless they are "and" Don't try to teach pigs to sing. This will not only lead to no results, but also make pigs unhappy! "

Murphy is a captain engineer at Edwards Air Force Base in the United States. 1949, he and his boss, Major stapp, had an accident during a rocket deceleration overweight test due to instrument failure. Murphy found that the measuring instrument was installed backwards by a technician. From this, he learned a lesson: if there are many ways to do a job, one of which will lead to an accident, then someone will do it in this way. To put it another way: suppose you drop a piece of dry bread on the carpet, both sides of the bread may touch the ground. But suppose you drop a piece of bread coated with jam on one side on the carpet, and it is often the side coated with jam that falls on the carpet (trouble). At the press conference afterwards, stapp called it "Murphy's Law" and repeated it in a very concise way: everything that can go wrong will definitely go wrong. Murphy's law spreads like wildfire in the field of technology, because it tells an ironclad fact: technical risk can change from possibility to sudden fact.

Murphy's law is widely used, revealing a unique social and natural phenomenon. Its extreme expression is that if a bad thing is possible, no matter how small the possibility is, it will always happen and cause the greatest possible harm.