This may be a ridiculous question, and is hypothetical, but I'd like a well-supported answer.
Is it possible to splice copper wire (for example) into the human nervous system? Would the charge carried along the nerves then travel into the wire?
Say for example that I wanted my reflexes to be improved (because I know electrical current travels significantly faster through copper wire than our nerves), and wanted to replace a section of my nerves with copper wire. Would it work?