Stretch a rubber band. At first it stretches easily, then resistance grows, and under strong stretching the band becomes stiff and may even turn white. These three stages are governed by three different mechanisms: Hooke's law, entropic elasticity, and strain-induced crystallization. Each is described by its own equation, and they don't switch abruptly but smoothly pass influence from one to the next, like a relay baton.
Scientists have long searched for a single best equation for each phenomenon. But the new system, called Physical Law Ecology, takes a different approach: it treats all possible equations as species in an ecosystem, competing for dominance under different conditions. The algorithm itself determines how many such "species" are needed and which one dominates where. In four different systems, rubber, boiling, galaxy rotation, and droplet evaporation, it found exactly three mechanisms.
This approach helps make more accurate predictions in engineering and science. Instead of arguing about which law is "correct," you can see how several laws work together and understand where each one matters most.
A candle, which we see as a single flame, is actually governed by four different equations: heat conduction in the wax, diffusion combustion in the blue zone, radiation in the bright part, and convection in the tongue above the flame.