Systems Forecasting

Scientific prediction

Systems Forecasting is the personal consultancy of David Orrell. I am motivated by the belief that a systems approach to forecasting, which uses mathematical models, coupled with other techniques such as scenario planning, can be used to leverage existing data, make predictions, and help prepare for the future. Projects have included assessing the impact of climate change on cultural monuments, predicting the effects of anti-cancer drug schedules with Physiomics, and transportation forecasting with the US Department of Transport. I am the author of several books and many articles on science, economics, and forecasting.


Please email dorrell (at)

Read profile at

David Orrell Catalysta