PK is right. I don't think a GLUT can be intelligent, since it can't remember what it's done. If you let it write notes in the sand and then use those notes as part of the future stimulus, then it's a Turing machine.

The notion that a GLUT could be intelligent is predicated on the good-old-fashioned AI idea that intelligence is a function that computes a response from a stimulus. This idea, most of us in this century now believe, is wrong.