The news was presented at the AAAS meeting in Phoenix, Arizona. Anna Fowler presented a synthesis of dozens of studies on near-death experiences and neuroelectrical activity around cardiac arrest. - https://particle.news/story/aaas-presentation-argues-consciousness-may-persist-minutes-to-hours-after-clinical-death
The idea is that your conciousness isn’t magical or special or something that needs to jump anywhere, I save a game, I turn off my pc for a few million years, move the save file to a different computer, start it up and the game continues.
Problem with that: It is impossible to transfer a file. The best you can do is copy it and delete the original.
So how do you upload a human brain and be sure that’s you and not a copy.
The idea is there is no difference, if its a copy they are both validly you. Or to put it another way there is nothing to transfer beyond the data.