In the early third millennium, Human time Common Era, it is widely believed that all parsimonious and useful representations of things and ideas of our world are locally linear. Algorithms represent the world in tensors and then proceeds to analyze it using algorithms that have components which are dominated by their first order terms. Locally, these are linear models. After composition, they seem to be useful and able to forecast macroscopically observable phenomena correctly.

One wonders,… in a fantastic and sci-fi hallucination the day when we declare…

The world is not flat!

again, and rediscover our world under this new light.