Could you map out all the connections in someones brain just by probing every neuron and tracking them as they send signals to each other (as opposed to every synapse, a much less ambiguous but far harder exercise)
The technology level is 20 minutes into the future. We already have self-assembling diamond-coated copper wires and that human cells actually eat some kinds of nanowires. (we're assuming said mad scientist already has a big enough computer to record all the data, just record and map, no-one's getting their mind uploaded to the cloud anytime soon)
If someone could get enough of these into someone else's head so that there's at least one probe in the nucleus of every neuron, would they be able to work out which neurons were connected where by tracking nerve impulses as they move around the brain?