In an empire of absolute rationality that relies on "oracles" to predict the future, thereby avoiding all historical detours and achieving ten thousand years of peace, a low-level archivist who can hear "historical noises" (that is, various possibilities in our real history) discovered the huge lies of the oracles.
· Main plot: The protagonist goes from doubt to confirmation, and then joins forces of resistance, trying to break the monopoly of the oracle and regain the freedom of "choice" and "uncertainty" for civilization, even if this will bring chaos and war.
