Author here! It's from a workshop in 2001 for the National Research Council's Board on Science, Technology, and Economic Policy. He gave a talk. You can ctrl+f

Author here! It's from a workshop in 2001 for the National Research Council's Board on Science, Technology, and Economic Policy. He gave a talk. You can ctrl+f for it at this link https://www.ncbi.nlm.nih.gov/books/NBK208682/ https://www.ncbi.nlm.nih.gov/books/NBK208682/