Dr. Eugene Terry Tatum is today’s foremost expert on the potential applications of black holes with respect to cosmology. This has a long-standing tradition dating back to the Hawking-Penrose conjecture that a time-reversed giant black hole (i.e., smoothly-expanding as opposed to smoothly-collapsing) could be used as a general relativity model for cosmologies originating from a 'singularity” condition. Following the initial Planck Collaboration reports, Dr. Tatum published two seminal papers comparing the observational data to the Hawking-Penrose conjecture. The results were sufficiently intriguing for Dr. Tatum and some Indian physicists to develop a successful mathematical model ['Flat Space Cosmology” (FSC)] based entirely upon black hole equations, including a slightly-modified black hole temperature formula suitable for cosmological scaling. Flat Space Cosmology is now the leading competitor to standard CDM cosmology.