What is Barnum effect? What is Murphy's Law?

Barnum effect refers to a psychological tendency, that is, people are easily hinted by external information, which leads to the deviation of self-cognition, and think that a general description of personality reveals their own characteristics very accurately.

Murphy's law originated from an American captain named Murphy.

Because he felt that a colleague was unlucky, he casually said a joke: "If something is likely to be screwed up, let him do it and things will be screwed up."

Later, this sentence was extended and some other expressions appeared, such as "If something bad is possible, no matter how likely it is, it will always happen and cause the greatest possible loss", "If something goes wrong, it will eventually go wrong" and so on.

Extended data

Four theories that can be deduced from Murphy's law.

1. Nothing is as simple as it looks.

Everything will take longer than you expected.

3. Things that may go wrong will always go wrong.

If you are worried about something happening, it is more likely to happen.

Baidu Encyclopedia-Barnum Effect

Baidu encyclopedia-Murphy's law