There Is No Success Or Failure In

Darwin's Greatest Achievement Was To Show That The Appearance Of Purpose, Planning, Teleology (design), And Intentionality In The Origin And Development Of Human And Animal Species Was Entirely An Illusion. The Illusion Could Be Explained By Evolutionary Processes That Contained No Such Purpose At All. But The Spread Of Ideas Through Imitation Required The Whole Apparatus Of Human Consciousness And Intentionality

Nowadays Nobody Bothers, And It Is Considered In Slightly Bad Taste To Even Raise The Question Of God's Existence. Matters Of Religion Are Like Matters Of Sexual Preference: They Are Not Discussed In Public, And Even The Abstract Questions Are Discussed Only By Bores.

You Can't *discover* That The Brain Is A Digital Computer. You Can Only *interpret* The Brain As A Digital Computer.

In Many Cases It Is A Matter For Decision And Not A Simple Matter Of Fact Whether X Understands Y; And So On.

There Are Clear Cases In Which "understanding" Literally Applies And Clear Cases In Which It Does Not Apply; And These Two Sorts Of Cases Are All I Need For This Argument.