This Arcadia Economics interview is on one subject only: the pre-production sweet spot (PPSS). My research in this area has convinced me that I've found a more reliable way to increase the odds of bagging big wins in resource speculation. It was great to be able to get into the subject in depth with Chris, and go over what it is, why it happens, and how investors can benefit. We also discussed some of the history, which is not in the PPSS report itself.