[6 intervals of 3 strings relaxing gradually.]
Kangaroo is a particle physics modelling component for Grasshopper that Daniel Piker is writing. One early example of its capacities is a catenary solver (which is becoming a common test problem to demonstrate nascent methods of digital form-finding). Kangaroo has potential as a rudimentary way to sketch structural behavior/failure.
While accurately reproducing physical interactions is useful, these tools invite the modelling of imaginary rather than realistic physical forces. Static geometries begin to act out the desiring impulses that they inherit from their instructions.