Indeed, Teddy’s code-breaking skills are impressive, as he manages to decipher Rachel’s delusional logic with little outside help. The line of the note Teddy does not understand, which he thinks could refer to someone else, evokes Laeddis. After all, Teddy’s dream suggested Laeddis and Rachel are linked somehow, and while dreams might not be the most trustworthy evidence, they aren’t always totally illogical.