Hey sorry for the late reply.
One thing I don't quite understand from all these doctors and scientists is that there seems to be some kind of common assumption that consciousness is eternal - and that we're all one - or connected.
I'm not entirely sure what you mean, or whether, what I'm about to say is related, but there is this hypothesis called Panpsychism, that might be the same thing you are referring to. Panpsychism comes in different varieties, however, the one, that I found interesting, is the idea that all atoms or molecules have all some kind of intelligent properties to them. Thus is it speculated that the human conscience, or the conscience for any living organism or the like, is basically just the sum of the process of a particular structure or amalgamation, of intelligent particles.
I believe that you are a follow Dane, therefore I link you to this podcast, from the Danish National Radio, on the topic of Panpsychism.
https://www.dr.dk/radio/p1/supertanker/supertanker-hvordan-oplever-jeg-mig
And here is the link to the english Wiki page.
https://en.wikipedia.org/wiki/Panpsychism
While I do find Pansychism an interesting hypothesis as to why/how consciousness occur, I must admit, being a self-proclaimed empiricist, that there are some fundamental ontological, or observational, issues with Pansychism that it must overcome before I can believe its premise.
So in that regards I consider myself to be a materialist on the topic of consciousness, meaning that I believe that the humans conscience is a physical manifestation that occurs naturally in a living human brain. Which is the only observable place that it can exist.