Quote Originally Posted by wufwugy View Post
As for the changed meaning of the word, this is also common in all sorts of fields. It's frustrating to deal with, but scientists have never been easy to deal with.
They didn't change the meaning, they eliminated it. Based on your definition, when an economist says, "Agents act rationally", they might as well just say "Agents act." Their intended meaning is the same thing in both statements. Because from what you're saying, it doesn't matter what a person's reasons are -- all that matters is that they did something.

So why even use the word "rational" anymore?

Also, I don't know that the term "scientist" applies to a person that thinks that rationality is devoid of reason and comes up with theories that are not meant to be tested or provable.