“Heat some paper to 300ºF (150ºC) and mostly what happens is you have some hot paper. Heat some paper to 500ºF (260ºC) and what you have is a fire. You can use that fire to start other fires, and there’s a self-sustaining thing happening that will go on until all of the locally available fuel is consumed.”
https://homosabiens.substack.com/p/activation-energy-is-a-good-model
This blog post is a good demonstration of how knowing one concept/pattern can lead you to seeing the same concept/pattern at many different levels. This is the idea behind universal patterns, they are fractal and occur and recur at many different levels and scales.
