The hypothesis that people cannot always make completely rational decisions by examining every possible choice but instead use of rules of thumb to guide them is known as;

I'm going to go with 1,982 feet because of all of the ice.                                               ps its this is not the answer go with d 6,500.

well its not not rising unemployment and falling inflation.

hope this good !

Thomas Paine proved Common sense was a rule used to make rational decay