a very-extremely-over-simplified basic explanation of how 2nd person works with meta (if you delete the "Host perspective" sprite the 2nd person sprite will hide)
1st person - You are the character 3rd person - You "spectate" the character Second (2nd) person is the perspective of a character that is on set, but not the main character themselves. Basic explanation: Main character is "Guy A", and you have "Guy B" and "Guy C" in the same room. in second person, you would see the perspective of Guy B, but then Guy B leaves, so to keep Guy A in the story, you swap to Guy C's perspective. but what happens if Guy C is killed and no one else is there to perceive Guy A? Poof, Doesn't exist. only in memory. If there is no one to view what Guy A does, he doesn't exist. in other words, they aren't to death. TLDR: 2nd perspectives literally die if alone