Such radical thinking on domestic and foreign policy highlights the gap between Corbyn and mainstream social democracy, a big plus for his followers, who are fed up with centrist politics. Every generation challenges received wisdom.
It's tough getting through the throng of women. It's Friday night and Sam Gray's set has just ended. Sweat is pearling on his brow. He bows and steps from the stage. The four other band members lay down their instruments and grin at each other.