The Invention of Physical Artifacts

To what extent was the actual existence of physical artifacts important? And some people think maybe it was not that important. Other people think that the instrumentation of cogni o cognition was actually crucially important. When you attach a machine to your brain is you can no longer draw a sharp line between where your body and interiority ends and where the rest of the world begins. Ihts o, subjectivity and objectivity becomes sort of this fuzzy transitin zone.