I recently co-authored a paper with Martin Sweatman from the School of Engineering, University of Edinburgh, titled: Decoding European Palaeolithic art: Extremely ancient knowledge of precession of the equinoxes. It is currently under peer-review but can be downloaded here: https://arxiv.org/abs/1806.00046 and here: https://scirate.com/arxiv/1806.00046 The background assumption is that civilisations developed through hunter-gather rituals tied to […]