The papers to discuss:

Medvedev, Michael G., et al. “Density functional theory is straying from the path toward the exact functional.” Science355.6320 (2017): 49-52. http://science.sciencemag.org/content/355/6320/49

Kepp, Kasper P. “Comment on “Density functional theory is straying from the path toward the exact functional”.” Science356.6337 (2017): 496-496. http://science.sciencemag.org/content/356/6337/496.2