In December 2017, the world of perception was taken by storm by yet another illusion that promises to show the difference between reality and what we see – Takahashi’s illusion”. The visual effect is called the ‘curvature blindness’ illusion, Takahashi. However, I will argue that it is possible to offer an alternative explanation in which what one sees is just what is there.
The traditional contrast between Copernicus and Ptolomeus was more than an astronomical issue. It showed that a conceptual change can lead to a deeper understanding of the nature of reality. Copernicus was not a modern mathematician and his model fell short of current criteria of science. Yet, his insight allowed future generations of scientists to discover the structure of gravitation. I enjoyed making a few animations to make the point manifest.
This is a gif I made applying simple local dynamic constraints that minimize the differences. In practice all bars minimize the efforts of moving in a certain way. The same effect has been put to use in the famous case where several metronomes come into synchronization when weakly coupled together. Rather than as an example of order emerging from disorder it seems to me a case showing the power of conformism.