I've just been reading a fascinating article about slime mould, not a new brand of sealant for tubeless tyres but the stuff that exists in nature.
Evidently they are sometimes mistaken for Fungi but are actually a type of amoeba, possessing no neurons never mind brains.
A group of Japanese researchers were doing various experiments and one of them had the idea to take a Petri dish and place tiny pieces of oatmeal at places on the surface of the dish that corresponded with the stations on the Tokyo transport network.
The slime mould grew and died back over a period of time and eventually recreated the transport network, essentially finding the optimum routes.
There's a lot more in the article, discussing the slime mould matrix as resembling to some extent the cosmic web of galaxies, dust clouds and dark matter.
It's sometimes easy to get into a routine familiar thoughts and interests, I find reading about subjects that are outside my usual interests tends to freshen up my general outlook and gets me pondering on things anew.