This article is terrible, but this is the plot of multiple pieces of sci fi media. In cyberpunk 2077 you have “soulkiller” which is a program that extracts the entire contents of someone’s mind to an “engram” that can be used to interact with their consciousness after death. And the black mirror episode “San Junipero” is about people uploading their consciousness to continue to exist after death. While it’s a dumb gimmick in its current state, it wouldn’t surprise me at all to see this become a thing in the future.