Ten thousand years ago or more, people started painting the walls of caves near Bhopal, India.... Today, many of the cave walls are now palimpsests, with medieval warriors covering Chalcolithic art on top of even older Mesolithic drawings. Still, an overlooked pattern spotted by a tour group of scientists in March 2020 seemed so, so, so much older.... “ Finding it where we would not expect, on the last day of the expedition, in a cultural stop?...