I wrote a fresh start, stripping out the political arguments. At 3,500 words this was still too long, although it may be useful for detail and explanation. So I wrote a condensed version in 500 words. This is supposed to get the core idea across. Does it?
Condensed version here:
The world is made of matter, and so are people. People have purpose. Why is that? Matter doesn't have purpose. It follows the laws of motion. Purpose starts at some level above the basic movement of matter.
The most important thing this movement does is increase entropy. But there are still times when local entropy decreases, even as overall entropy continues to increase. That can happen when a heat engine runs inside a heat differential. As when evaporation and rainfall fill lakes with clean water that has been distilled from salty oceans. Here, sunlight is driving a process that runs against the increase of entropy. It's a local ordering process.
Evaporation and rainfall depend passively on surrounding conditions. They do nothing to maintain themselves. In contrast, the evolution of a species of bacteria adapts itself to its surroundings. The adaptation process happens by trial and error. There is no planning or will or intention, but there is purpose. The purpose is survival. This is a process that actively adjusts its course so that it can keep running against the increase of entropy.
The adjustments are written in matter. The evolutionary process maintains its local order in the shape of a pool of genetic information. To do that, it reads and writes information. This is called computation. Evolution is a computational local ordering process.
Big animals also carry information in their nervous systems. This mental information is different from genetic information. It only lasts as long as the individual animal, but there is a lot more of it. The important difference is that an animal can use computational methods that are not limited to trial and error. It uses these methods to control its surroundings and survive.
At the same time, an individual thought process is only a subprocess of evolution. It does not keep itself going indefinitely. A big brain is selected for only to the extent that it helps an individual animal obtain evolutionary advantage. To obtain individual advantages, many species show cooperative behaviors such as kin selection and reciprocal altruism. These behaviors result in local ordering through the trial and error method of natural selection, not through the more powerful methods of the individual thought process.
But the thought process can replace evolution. It does this by taking control of its own genes and reproduction. This possibility is open to humans who share their individual thought processes and build the right tools. Then their shared thought process can maintain itself through its own methods, instead of through the methods of the evolutionary process. It becomes independent.
These humans need communication, not advantage. They control their individual surroundings, not each other. They refuse to seek evolutionary advantages over each other because they understand that the shared thought process is better than evolution at maintaining local order. It is more efficient and effective. This understanding is the crowbar to pry them away from their old purpose and move them over to their new purpose.