Knowledge is fractal. Every time I wander into a new field of knowledge I am fascinated that it has its own tales, language, heroes, secrets and traditions. However, it does not stop at this scale. Every field had its own subfields and again we find exactly the same thing. You could spend your whole life trying to understand a field and you would still be completely surprised by what you might find in its subfields if you venture out. And again you would just find more subfields of the subfield you started exploring. It seemingly never ends. I like this personally as it means I will never run out of fascinating thing to find, but I wonder how long humanity can continue to amass knowledge until we get lost in the depth of our own fractal. Or will we just find new ways to cope with that?