The decisive moment for AI will come when a program can run a corporation better than humans. That's not an unreasonable near-term achievement. A corporation is a system for maximizing a well-defined metric. Maximizing a well-defined metric is what machine learning systems do well. If a system listened in on all communication within a company, for traffic, sentiment analysis, who responds to whom how fast, and what c…
Interesting theory. My perspective is that once a corporation thinks of itself that way, it's already going downhill. Once a measure becomes a target, it ceases to be a good measure.
Now I assume you're imagining the well-defined metric to be profit, in attempt to dodge the aforementioned problem. However, even leaving aside the problem of short- vs long-term profit, I don't think that metric has a sufficiently well-defined link with actions to be optimized with anything we can build in the near term. There's too much "common sense" involved that, AFAICT, we still don't have any idea how to handle.
Ed: I guess I sort of did the thing the OP told me not to. But I still don't think the ability to phrase the problem of running a corporation as "optimize profit" makes it likely to be accomplished sooner than any other AGI application.