Another take away from this new documentary is that they went back to the Barabar caves in India (which are impressive in their glass like finishing of the granite surface and the metric dimensions and perfect circular shapes), to make some further measurements and found even more baffling signs of mind boggling precision with an increased resolution of the laser scanner. One of the caves that at first sight seems to be rectangular, has precisely curved walls, but the curve is almost imperceptible to the naked eye, as it corresponds precisely to an arc of a circumference of 120 meters of radius. Mind boggling!