But let's dispense with one of the lazy, hazy assumptions we're all prone to fall into whenever we hear the word 'cybernetics'. Cybernetics does not only refer to technical machines. Wiener call it the study of control and communication in animals and machines (btw: why leave out plants?). Its principal discovery is 'feedback' - a system's capacity to reflect and act upon its own performance. So, as Luke and I were discussing the other day, the whole point of cybernetics is that nothing is 'more cybernetic' than anything else. There are only systems with more or less feedback, and diffferent types of feedback (k+, k-, k0.) So if the word 'cybernetics' calls up only gleaming steel you have the wrong association.
If cyborgianism is oriented towards a maintenance and reproduction of the organism and its homeostatic control circuitries, Cyberpunk or k-punk (one of the motivations for the 'k' btw is the origin of the word 'cyber' in the Greek 'kuber') flees towards a cybernetics of organic disassembly. Again, let's be clear here. You don't disassemble the human organism by replacing its parts with metal or silicon components. (That's why the term 'cyborg' - or 'cybernetic organism' is misleadingly redundant. All organisms are already cybernetic). What matters is the overall organization of the parts. Do the parts operate as hierarchically organized and functionally-specified 'organs' within a cybernegatively construed interiority or do they operate as deterritorialized potentials pulling from/ towards the Outside?