> The "you" isn't your physical body, it's the pattern recognition in your brain that that classifies some parts of its sensory input as "you" (see Mirror Hand illusion). That it happens to be running on meat instead of silicon is an implementation detail and not important.

It is important, if I destroy your brain and grow a new one and start running the same program on the new brain your consciousness is still dead and its a new person living.

Computer AI models don't run on a single machine, they run in a distributed manner using different machines at different times. When you ask a follow up question thats not sent to the same machine, its another machine answering. So the consciousness one of those computing machines experience would be extremely fragmented and not at all conscious about any discussion with you, since it only saw a few fragments of it.

And no consciousness doesn't expand to cover larger distributed computations, otherwise social media would have developed a consciousness by now but it hasn't. Groups of humans don't start to share consciousness, it doesn't happen, so you can assume groups of distributed computers wont as well.