This is going to sound a bit out there, but what if your brain is simply an antenna for your consciousness to come through from wherever. Has anyone actually tried to boot up an artificial brain derived from a real organism? I'd like to see a proof of concept that your brain IS indeed the seat of your consciousness, and not just a fancy quantum antenna.
That's pretty much what Descartes proposed! ( https://en.wikipedia.org/wiki/Interactionism_(philosophy_of_... . My favourite argument against this idea is that it would violate the law of conservation of energy. In any case it looks to me that all these dualist theories of mind are non-falsifiable
Rather, the brain's processes themselves are probably what makes you you. Regardless of whether they generate consciousness, the biochemical sensory-processing, storage-and-modelling, and decision-making algorithms (which we can detect by looking at synapses) are where you lie.
If your brain was somehow modified to take completely different decisions and make different statements ('dumb' magic-less rewiring), with the magic/antenna/emergent/quantum/whatever consciousness part kept intact, I am pretty sure that I would not consider the resulting being 'me'.
Of course everyone is free to believe otherwise.