Defined benefit isn’t really an obscure term. If you had to put together a pension plan for a business, you’d have to know the term, because it makes a big difference for your pension costs. I’m fortunate enough to have a defined benefit plan, my company switched to defined contribution for younger folks.
Actually, defined contribution is the term you mean, and Cain just gave a thorough answer using and explaining it. But the question he deferred to Newt - with humor- was about defined benefit. Cain is quite literal and wasn’t sure what was being referred to. If you’re looking for evidence to confirm your thesis that Cain is shaky on policy knowledge, which I think you are, you go ahead and use that. personally, I think the objective evidence is that Cain holds his own with Newt. I wonder if that would be said of you. Pfffft..