Suppose that you would have a crazy central bank that targets 10% inflation, and that the economic growth is 10% steady state (remember "all else equal" so also economic growth). Then yes, people will want 10% return in real terms on loans, which comes down to a crazy 20% nominal rate.
10% inflation doesn't mean 10% growth (and I'm very doubtful about deflation as well). I'm not interested in you setting your variables as you see most appropriate to fit your assumption. I'm obviously more interested in what happens in reality.
And in fact, you logic is not consistent per se, as is shown in my question above.