Brain uploading

File: nanomachines son.jpg (27KB, 600x338px) Image search: [Google]

27KB, 600x338px

I don't see why brain "uploading" wouldn't work:
1. Inject subject's brain with a bunch of nanomachines and raw chunks of semiconductor material (probably something usable on atomic scale)
2. Over time nanomachines would built a copy of a neuron in an electronic form beside it, cut the biological neuron when it isn't used and connect the new electronic variant to wherever it went.
3. After every single neuron is replaced by an electric analog, the brain is now entirely electronic.
The subject wouldn't even know it happened, every single electronic neuron would behave exactly as a biological one. Nothing has been copied at all and the subject is still the subject it used to be. The subject's brain can then be stopped so that the nanomachines can reduce the amount of empty space (since artificial neurons would be smaller) and compact the brain to something like a brain chip.
That brain chip can be connected to a computer for I/O and power. And that's it, the original brain and personality of someone is now on a computer. No need for simulating each molecule in a brain with hypergigantic supercomputers. I wouldn't be surprised if the first people to step on Titan, Pluto, Mercury or some extrasolar planet are just brain chips connected to a robotic body.
(pic is the first SFW image of a google search for "nanomachine porn", rest was just weird shit)