David Bohm has an interesting insight on order and complexity.

He gives the following example: A straight line is the simplest curve, in which each line segment differs in position. A circle gets a little more complex, in which each line segment differs both in position and direction, but the angles between segments are the same. A spiral gets more complex yet, and Brownian motion is the most complex of all.

And since the similarities in segments that define a straight line is different to those which define a circle, we can assert that circle has a higher order than straight line.

This leads to an interesting question: Are there subjective perceptions of the world? Bohm believes that subjectivity is but a lack of understanding, or of language, to describe the true quality of order that we perceive.

— 2006. 05. 16