Low-energy effective field theories arising from Calabi-Yau string compactifications are generically inconsistent or ill-defined at the classical lev… - Andrew Strominger

We have no idea what science will look in, say, twenty or thirty years. ... Every scientist has to bet. Science is not a science — it's an art and a gamble.

Much of 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 has neglected a surprising wealth of uncharted phenomena in the deep (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 , 𝒩=4 Yang-Mills and color memory in in black hole information and a possible fundamental new perspective on space, time and nature.

Why would there be math that had no physical manifestation?