Darwinian Daisyworld model from and Watson & Lovelock (1983), Robertson & Robinson (1998) and Lenton & Lovelock (2001).

Units of time are 40 Myr, giving R&R's span of 10 Gyr.

HSWT BPI Biological Systems

This model illustrates predator prey interactions using real-life data of wolf and moose populations on the Isle Royale.

Experiment with adjusting the initial number of moose and wolves on the island.

Environment Ecology Populations

This Insight is a simple model of a sluggish shower, the classic example from Systems Thinking of a balance loop with delay. It illustrates the sometimes baffling influence that time delays can have on simple decision making tasks.

Delay Balancing Loop

Balancing Loop Stock & Flow Simulation intended to show the effects time delay can have on the behavior of a simple balancing loop.

Udemy CIwIM SiIM SwIM EaBT

Model of rework in processes where quality, productivity, and delay may be manipulated to see how each affects the amount of work done and costs.

Rework Project Management Process