Isidro Gomez Vargas is a physicist–mathematician with a master’s degree and Ph.D. at the Instituto Politécnico Nacional. He has worked for two and a half years as a postdoctoral researcher at the ICF, Universidad Nacional Autónoma de México; and, currently, he is postdoctoral researcher at the Observatory of Geneva. He enjoy writing short stories, essays, textbooks, and Python code. His research interests are neural networks, Bayesian inference, machine learning, and their applications in astrophysics/cosmology.