Interesting post by Eli on Gray:

> "but by careful observation developed a set of ad hoc models, which turned out to be way wrong but extremely useful for prediction. "

That's the definition of a heuristic, which can model a behavior but with no physical explanation. Some people consider heuristics to be wrong by definition, while others say they are correct until they stop working (then you find a different heuristic).

> "but by careful observation developed a set of ad hoc models, which turned out to be way wrong but extremely useful for prediction. "

That's the definition of a heuristic, which can model a behavior but with no physical explanation. Some people consider heuristics to be wrong by definition, while others say they are correct until they stop working (then you find a different heuristic).