Random GoodHart: a newly discovered LAW

I know this is kind of random, and I just now, moments ago, accidentally discovered this, but there is a GOODHART's LAW  :-)

It states:   once a social or economic indicator or other surrogate measure is made a target for the purpose of conducting social or economic policy, then it will lose the information content that would qualify it to play that role.

This almost sounds like a parallel to the famous Quantum Mechanics rule of effecting the state of a particle by observing it. 

This bulletin was brought to you by the Totally Random Goodhart Reseach and Useless Information Recovery team.  Thanks for reading.

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rimar20005 years ago
Your clever law is a variation of other law "The implementation of a system changes the conditions that gave rise it, so is automatically outdated".

Years ago I discovered by myself a law that really did exists, that is "when a quantitative variation is large enough, it becomes qualitative". IE: you have an apple, then you get five new apples, it is cuantitative. But if you get a ton of apples, it is qualitative.
kelseymh5 years ago
Goodhart (author)  kelseymh5 years ago
Ah yep.....just stumbled on that a bit ago. :-)
canucksgirl5 years ago
Goodhart (author)  canucksgirl5 years ago

caitlinsdad5 years ago
You can't discover a law, you have to prove there is one. Thou shalt post.
Goodhart (author)  caitlinsdad5 years ago
I discovered that someone else had proven this law....then :-P
It is reasonable to believe?
Goodhart (author)  caitlinsdad5 years ago
OH you want me to look up the source again.....*sigh* LOL