Revolutions occur in conditions of abundance

Part of a series on revolutions.

What constitutes abundance? More influx than efflux is one way of seeing it. Of what? is a good question. For now, let’s leave it as broad as “resources.” We could also answer “energy,” as energy can be contained, for example, in chemicals or in matter.

Here are some examples:

• First I’ll write about the Fertile Crescent.
• The cell. All known life has a lipid bilayer membrane. This allows concentration of scarce resources from the surrounding environment.
• Plants and fungi have large surface area to volume ratios to concentrate nutrients, elements, minerals, and sunlight.