Humans have been offloading and augmenting themselves with technology throughout their evolution, the cooking of food meant that we no longer had to chew our food, and so our jaws shrank, clothing meant that we could stay warm even without fur, hammers extend the capacity of our hands and computers and books our cognition. On that same trend, the existence of one-way functions would be an example of augmenting, and offloading, our frontal lobes, authentication of who to trust.

The idea of one way functions therefore make sense as an evolutionary trajectory, since it offloads what has been done by the human frontal lobe onto technology, a trend for every single organ in the past million years. That is not a proof that they exist, just that if they were to exist, it would line up quite well with how technology has been used overall, throughout human evolution.

Homo nexus and the Age of Connection

The trend is towards extending the capacity of trust more and more, through social norms, customs, habits, protocols, politics, game theory, institutions, nation-states, and if authentication could be offloaded entirely onto mathematical norms, that produce the same result each time they are used and therefore reduce uncertainty (norms), that fits the trajectory so far.