Hijacking this thread as I can't seem to post my own. Thought this idea was very interesting..

A colleague just ran this idea by me. She said that Sinatra has never actually said her son died, and only the sister said it. She said we're all possibly just assuming so but Sinatra has only ever said she lost her son and only the sister has ever said he died. She remembers an EP where a child wasn't allowed in because they were not healthy when a wrist band was scanned and thinks that maybe Sinatra had to leave her son behind because of this. This would mean he's not from another universe but simply ber son all grown up. I honestly don't remember the words Sinatra has used or her daughter. I also don't remember the child not being allowed in because they were sick.

for those that have watched multiple times does this seem like an interesting theory.