Made me LOL. I'm a SciFi junkie and I've read quite a few stories involving cyborgs &c. I am not as optimistic as some of the culttranshumanists. While interfacing neurons with electronics is reality, that doesn't mean we're anywhere near controling machines directly from our nervous system, bypassing limbs, and getting sensory data back. I agree that once we are, economic forces will do the rest.
Of course, cyborgs aren't immortal, as long as there's a living brain inside that will deteriorate over time. I'm not sure that upload-your-mind kite will fly. It's somewhat related to artificial intelligence, and progress in that field has been minimal in the last two decennia. As with several other difficult inventions1, it's been 50 years away for as long as I remember, conveniently far in the future for the people making statements to that effect. By the time they can be queried about their predictions, they're probably dead.
1Like the space elevator, nuclear fusion power or high quality natural language translations by computer.
regards,
Hein