Much of theoretical physics over the last century has concerned the reductionist quest to uncover the laws of nature at ever shorter distances. In the last decade it has become increasingly clear, from a variety of investigations, that this long march into the ultraviolet has neglected a surprising wealth of uncharted phenomena in the deep infrared (IR). Far from being a boring place where all is trivial and well-understood, the deep IR in four-dimensional Minkowski space has a rich structure which we are only beginning to understand. Applications range from the IR divergence problem in QED, ????=4 Yang-Mills and color memory in QCD in black hole information and a possible fundamental new perspective on space, time and nature.

What It Means

This is a placeholder explanation generated by the low-overhead model. It interprets "Much of theoretical physics over the last century has concerned the reductionist quest to uncover the laws of nature at ever shorter distances. In the last decade it has become increasingly clear, from a variety of investigations, that this long march into the ultraviolet has neglected a surprising wealth of uncharted phenomena in the deep infrared (IR). Far from being a boring place where all is trivial and well-understood, the deep IR in four-dimensional Minkowski space has a rich structure which we are only beginning to understand. Applications range from the IR divergence problem in QED, ????=4 Yang-Mills and color memory in QCD in black hole information and a possible fundamental new perspective on space, time and nature." in the context of "(6 March 2018), Lectures on the Infrared Structure of Gravity and Gauge Theory chapter: Preface, ISBN: 9780691179735" to mean that wisdom is timeless.