So, can we talk about the Paul Ryan phenomenon? And yes, I mean the phenomenon, not the man. Mr. Ryan, the chairman of the House Budget Committee and the principal author of the last two Congressional Republican budget proposals, isn’t especially interesting. He’s a garden-variety modern G.O.P. extremist, an Ayn Rand devotee who believes that the answer to all problems is to cut taxes on the rich and slash benefits for the poor and middle class.