I'm not so sure that our human brains and human societies are the most complex information encoding geometries in the 'verse. The brain of an elephant's trunk motor control cortex is pretty amazing, and they have a very complicated social system too. Ants also outweigh humans in terms of total biomass, let alone number of ants, and their eusocial system of 'governance' inside of a colony and between colonies is barely grasped as it stands. Do these creatures have a sense of 'curiosity'? Elephants are really close to maybe having it, but as for ants? Who can tell? Does that mean that they cannot build models of the future too, perhaps in ways we will not understand for millennia?

I think it's just evolution, nothing more, but that is not to say that evolution as a very simple principle has not made astounding 'discoveries'. We evolve, elephants evolve, ants evolve, and in that bloody and hungry process, beautiful things of incredible complexity emerge all over the globe.