Tiresas' prophecies come true because of a poetic or literary recursion built into the Oedipus cycle or the Oresteia or whatever. (I'm AFK, where K means "my library.") So when the guy to whom Tiresias prophecies that said guy will commit patricide in fact kills his father, he does so because he tried to not kill his father, and in attempting to escape his destiny, inflicted it upon himself. Stallman's apocalyptic ravings have had their basic gist "come to pass," in this interpretation, because of the actions of the developer community or tech community or whatever, in the struggle to develop software, which software has spiraled beyond all reasonable control, even as the guy killed his father by trying not to do so. Thus this wise guy is hella Greek. And this parent poster is also a wise guy. And this patricide is about to become all-too-ironic, because throwing out one-liners of the parent's (post's) sort is a bleak literacy, which I have now killed. And literacy rises like a phoenix in my child post, and the guy who kills his father is blinded as punishment, and becomes a wandering seer himself. So there.
TLDR is that prophecies are self-fulfilling. Tiresias is the OG self-fulfilling prophet.