Haldane's thesis is that sheer size very often defines what bodily equipment an animal must have: Insects, being so small, do not have oxygen-carrying bloodstreams.
What little oxygen their cells require can be absorbed by simple diffusion of air through their bodies.
But being larger means an animal must take on complicated oxygen pumping and distributing systems to reach all the cells.Many of his examples are based on the square–cube law, although he does not use that terminology.
[2] Another planning theorist, Christopher Alexander, refers to this principle in his theory of "Independent Regions" in A Pattern Language, citing Haldane: ...just as there is a best size for every animal, so the same is true for every human institution.
In the Greek type of democracy all the citizens could listen to a series of orators and vote directly on questions of legislation.