Xiao Gang Wen - “Emergent symmetry: a new way to understand strongly interacting gapless states ..."

Picked one by one from a mixed channel. Transcript check: both title readers certain; 3 of 5 sampled certain picks confirmed by transcript, none failed. Channel rule: Include colloquia, Bunyan Lectures and other named physics talks or lectures by researchers; exclude commencement speeches, fun runs, ceremonies, memorials and other departmental event footage.