fatalist

noun

1. One who maintains that all things happen by inevitable necessity; a person who believes in fatalism.

   “....it is that, with every day, my love for you increases—though that would seem to be almost an impossibility. Why should I not become a fatalist? Remember how, on the third day that we ascended the Shlangenberg, I was moved to whisper in your ear: 'Say but the word, and I will leap into the abyss.' Had you said it, I should have leapt. Do you not believe me?"”

   ““Maybe the problem is that you’re a romantic,” says my former lover-slash-friend-slash-male-sensitivity-reader. “And maybe so are the other fatalists.””

   “[Nick] Bostrom, the philosopher, expressed a sort of resignation about the AI future when we spoke. He used to call himself a “fretful optimist,” he said, but now he’s a “moderate fatalist.””