The technical argument is referring to technologies that can scan a living, working brain, I think. If you’re talking about frozen brains that you can slice up, there’s a decent chance that the resolution of existing scanning electron microscopes could be good enough for brain emulation—the big problem is the sheer volume of material to be scanned.
Frankly, to count as a possibly interesting technical argument against mind uploading it would have to be written explicitly in response to the Whole Brain Emulation Roadmap which discusses all these issues (not just scanning but the “jigsaw puzzle” issue) in detail.
The technical argument is referring to technologies that can scan a living, working brain, I think. If you’re talking about frozen brains that you can slice up, there’s a decent chance that the resolution of existing scanning electron microscopes could be good enough for brain emulation—the big problem is the sheer volume of material to be scanned.
Frankly, to count as a possibly interesting technical argument against mind uploading it would have to be written explicitly in response to the Whole Brain Emulation Roadmap which discusses all these issues (not just scanning but the “jigsaw puzzle” issue) in detail.