Review of "String scattering in flat space and a scaling limit of Yang-Mills correlators" by Okuda and Penedones

The authors of this paper have derived a rather concrete relation between flat-space scattering amplitudes for type IIB superstrings in 10d and a specific scaling limit of N=4 supersymmetric Yang-Mills correlators in 4d. The speaker will try (possibly without success) to review this paper.