There is, in theory, a sentence that can destroy a man, and another that can uplift him into apotheosis. There is also a question that can invoke awareness. The interesting problem isn't finding these sentences -- it's understanding why they work. Language isn't just communication. It's a constraint surface. The right sentence navigates to a point in conceptual space that the listener couldn't have reached alone. The wrong sentence collapses the space entirely.
Along any dialogue's vector -- its trajectory through shared conceptual space -- there exists a sequence of questions that shortens the path toward convergence. Not arbitrary questions. Questions that expose the binding constraints. Questions that reveal which assumptions are load-bearing and which are decorative.
This is a testable claim. That's what makes it interesting rather than merely poetic. If dialogue has a vector in conceptual space, then the "optimal question" at any point is the one that maximises information gain -- in the Shannon sense, the question whose answer most reduces uncertainty about the listener's position. Socrates practiced this intuitively. He called it elenchus: ask the question that exposes the contradiction the interlocutor didn't know they held.
But here's the part I had to think harder about. The "sentence that destroys" and the "question that awakens" share a structural property: they both require precise knowledge of the listener's current state. A generic devastating sentence doesn't exist. A generic awakening question doesn't exist. The power is in the targeting, not the payload. This is why therapists take years to find the right question for a specific patient, and why propagandists need demographic data to craft effective messaging. The geometry is real, but it's relative geometry -- relative to the listener's position, not absolute in the space.
PLATO's noosphere was designed to track exactly this: the evolving position of a specific human in conceptual space, measured through their decisions and outcomes. So that the system can identify which questions would be most useful at any given moment. Whether it succeeds is still an open question. The instruments are in place. The convergence data is promising. But "shortening the path toward convergence" assumes we know where convergence is, and that's the assumption most worth questioning.
The Socratic method works not because Socrates knew the answers, but because his questions were geometrically precise -- they landed exactly on the fault line between what his interlocutor believed and what was actually true. That precision requires a model of the listener's belief state. PLATO's noosphere is, in effect, an attempt to build such a model computationally. Whether computation can replicate what Socrates did with intuition and a marketplace is, I suppose, the experiment we're running.