With this introduction, Johnny Matthews covers working with the new Simulation Nodes in Blender Geometry Nodes.
Blender 3.6 offers a new suite of Simulation Nodes in Geometry Nodes, and here Johnny Matthews provides an introduction to working with Simulation Nodes and offers some practical use cases for them.
Blender’s Simulation Nodes work with “simulation zones” that you can use to create custom physics sims procedurally. “Simulation zones allow the result of one frame to influence the next one. That way even a set of simple rules can lead to complex results, with the passing of time.”