Look at the skeleton of this beautiful fish. The intricate and delicate structure of the bones is a stunning demonstration of the nature of networks. We can see the whole skeleton is made up from two simple elements, nodes and connectors. Whether we zoom in to study just one group, or out to look at the larger regions we see a variety of different patterns based on these two simple elements.
If you start at any point on this skeleton you’ll be able to trace a path to any other point without ending up down some disconnected cul de sac. In other words every single point is connected to every other one….either in simple one or two step connections, or through an almost infinite variety of pathways across the whole structure.
This is one of the most fundamental patterns at the heart of reality – networks of nodes and connectors.
You can see the same design in all forms of life, especially in multicellular organisms, all kinds of plants, animals and human beings.
Networks of nodes and connectors are the essential fabric of the universe.
Two of the best books I know about this phenomenon are Linked by Barabasi, and Connected by Nicholas Christakis and James Fowler. I recommend them both. They show how this apparently simple structure builds up into the most complex of phenomena, from individual organisms, to social groups and whole ecosystems.
Once you see things this way you can’t help but see connections everywhere. It’s the science which demonstrates the limitations of reductionism and abolishes the notion of atomisation.