In “The Thing,” a computer estimates that it would only take the alien creature three years to assimilate humanity if it could reach civilization. Carpenter explained, “‘The Thing’ turned out to be an end-of-the-world project. I don’t think I knew at first. It was just a monster movie, but the implications of ‘The Thing’ became clear, and it was like, ‘Oh dear, there’s no way out of this. It’s the end of mankind.’”