I Think It's Rebellious on His Part Relative to the Critique of Pure Reason

I wonder if he even knew that this was a more rebellious act, the second, this critique of practical reason, than the first critique. Because he really thought he was... He in fact called the first critique a Copernican revolution. So he really thought that that was his revolutionary move. And I think it's interesting that you're... This is... He clearly was aware of the idea of liberal freedom. That's what he's targeting. And he's breaking from this, from that idea.