There's an unnerving parallel in the development of religious traditions, I'm familiar with, and people settling down into permanent communities. The morphing of an intuitive idea like infinity into a nuanced, internal grasp of "nothingness" is interesting. You see it with Hindu scriptures to Buddhism; Judaism to mystical Islam. European pagan traditions to secularism. Infinity is an intuitive concept based on my own experiences. It is far easier to feel insignificant in the face of anything so large that it appears to never end than it is to feel more significant than things around you to a point where external things are relatively insignificant. I assume this is a general human condition. Before settlements, people would be exposed to all sorts of things that tickle the intuitive feeling of infinity. Like any large swath of visually contiguous geography - sky, stream, mountain. They wouldn't be roaming the great outdoors all day, but the occurrences of being exposed to such things is particularly more frequent than while domesticated in settlement-cities. When there's a focus on minute things, there' s a tendency to over-emphasize your perception of things compared to what these objects actually are. As example, any type of shopping where you are scrutinizing the same product made by different manufacturers who present their products differently: What is a "warranty"; What does the aesthetics of packaging mean? Does it change the product, no. It's a minute psychological object that empowers your own perception over the reality of the object. So people go from an abundance of exposure of self-deprecating phenomenon based on physical perception to self-empowering, introverted phenomenon. I believe this has had its hand in the development of religious attitudes from a rooting in "infinity" to a focus on "nothingness."