Not that these presumed boundary transgressions are anything new...

They were just more subtle. A spear, for example, used to kill prey is a materialization of an abstract function and that which was previously inseparable from a subjective immediacy or an organic interiority, that is, the killing of prey with one’s hands became external and entered into an object — the spear. Paradoxically, however, the spear can only become fully effective after it has been re-internalized, so to speak, inasmuch as the user must learn new skill sets (information patterns) and train the body to employ it, thus creating an enlarged, modified, and virtualized body. We like to think when we finally put the spear down that it is no longer a part of us for many reasons - it is technological and I am biological, it is artificial and I am natural - but this is not the case. The spear becomes part of us through this informational feedback, not as dramatically as cortical implants and nanoparticles, but part of us nonetheless.