S. Popov: But it was very difficult to publish that. Work consisted of a whole series of political problems. Among them, the client didn't really want, and the five-year plan, as it turned out, didn't really fit with what was later... was... was achieved. But the director of the institute didn't really look favorably on that [work]. And on the whole, so... Kind of, I ended up with very, very mixed feelings about what was going on. And then, the system itself was already starting to... it wasn't that it was simply annoying. It depressed me profoundly.