Complex sentence: When that rephrasing causes confusion, Rummy angrily discusses more confusing but related ideas, saying: Well, what I'm saying is that there are known knowns and that there are known unknowns.
Split into simpler sentences: When that rephrasing causes confusion, Rummy angrily discusses more confusing but related ideas. Rummy says: Well, what I'm saying is that there are known knowns and that there are known unknowns.