The ghosts never act out they only serve to be there to terrorize the governess. So you can kind of keep a little bit of distance from her once you start questioning if it's real or not. Yeah and I think you get into that with like conspiracy theories and stuff who like every plausible explanation for why their viewpoints are false actually feeds them. It is in a way I think it's a much more extreme version of confirmation bias but yeah that's exactly what confirmation bias is.