Zuckerberg’s corollary

In 1889 Herman Hollerith patented a "...method of compiling statistics, which consists in recording separate statistical items pertaining to the individual by holes or combinations of holes punched in sheets of electrically non-conducting material..." The resulting retangular cardboard slips were used, along with machines of Hollerith's design, to conduct the 1890 census. Other uses were… Continue reading Zuckerberg’s corollary

Modeling models

Perhaps if transistors hadn't been invented then running VisiCalc's descendant, Excel, on a vacuum tube computer would show you the real meaning of global warming... Let me back up. I want to talk about computer models, starting with some I was running in the early 1970s. I worked for a company whose business was replacing… Continue reading Modeling models