[jetbooster]

In artificial hip definitely makes you a cyborg, and I like to imagine by contact lenses as cybernetic vision enhancement devices, though I can see people err-ing on that. But I don't think I would consider my glasses to be 'cybernetic'. In my opinion the difference is whether it sits inside the body (imo, inside the eyelids counts). Pacemaker, insulin pump, cochlear implant. Otherwise, you could claim our phones are cybernetic memory and knowledge enhancements (which isn't entirely wrong)

Though I think many of these simply bring you back towards 'baseline healthy human'. For many, the term cyborg requires you to _exceed_ baseline human to be worthy of the term.

So if he implanted this device that made him inhumanly good at chess, I think it would count. This is just using a very inefficient keyboard.