This lecture achieves the astonishing feat of being very accessible to non-mathematicians while being deeply insightful. The global vs local distinction mention

This lecture achieves the astonishing feat of being very accessible to non-mathematicians while being deeply insightful. The global vs local distinction mentioned, although not the same, brought to mind Dyson’s distinction between “birds” and “frogs”: https://www.ams.org/notices/200902/rtx090200212p.pdf https://www.ams.org/notices/200902/rtx090200212p.pdf