Where are the borders of mind and where does the rest of the world begin? There are two standard answers possible: Some philosophers argue that these borders are defined by our scull and skin. Everything outside the body is also outside the mind. The others argue that the meanings of our words “simply are not in our heads” and insist that externalism applies this meaning also to the mind. The authors are suggesting a third position, i.e. quite another form of externalism. Their so called active externalism implies an active involvement of the background in controlling the cognitive processes.