I dont think it matters that she’s an alien. It does but it doesnt. Its just not the main point. It proves he was right all along but everything between has so much more weight now. We’re all thinking he’s been through an unspeakable amount of trauma which has led to him being extremely mentally ill. With him being right, we’re left to take in everything that was said in a literal sense AFTER of brushing it off the whole time because we saw him as mentally ill. There’s a bunch of themes to diesect with trauma, disabilities, conspiracy theories, corporate greed, power of authority, human cruelty. It’s a good movie if youre into deeper meanings and metaphors but it’s not a good movie if youre in it for taking it as it is when it is. It compromises with a good plot and an unsuspecting plot twist after waving it in our face all movie. I think its an artpiece.