RE:RE:Gold up.. PVG is down another 4 %Thank you for what must be a light hearted attempt at comedy. 90,000 samples (as of 2014) processed with 70 years of math. It started with the masters thesis of Danie Krige in 1951, with more theory added by French mathematician Matheron in 1960. Perhaps the only mining master's thesis that has had a huge and continuing impact ever since being written. It's ok, under control, no need to sweat that part...