My theory is that Peter doesn’t really know as much as he pretends to know. He knows what Michael and John have told him, and he knows what he’s overheard people say on the island. But will he know Granny? Would he know Dr. Hopper? I can’t recall if Archie is in the upcoming episode, but it would be interesting if Peter had a session with him. Jared will possibly play several short scenes where he has, as Peter, no clue who he’s talking to. I hope they give us some interaction between Panry and Blue. It will be interesting to see if Peter recognizes Blue.