In: Biology
Define and discuss neo-evolution and the idea of homo evolutis. Take a position regarding the future of human evolution: evolutionary equipoise, traditional biological evolution or neo-evolution and defend it rationally and with reference to evidence..
Neoevolutionism is a social theory that tried to explain the evolution of societies by drawing on Charles Darwin's theory of evolution and discarding some dogmas of the previous social evolutionism. Neoevolutionism is concerned with long-term, directional, evolutionary social change and with the regular patterns of development that may be seen in unrelated, widely separated cultures.
Neoevolutionism emerged in the 1930s, extensively developed in the period after the Second World War, and incorporated into anthropology as well as sociology in 1960s. It bases its theories on the empirical evidence from fields such as archeology, paleontology and historiography and tries to eliminate any references to a system of values, be it moral or cultural, instead trying to remain objective and simply descriptive.
While the 19th century evolutionism explained how culture develops by giving general principles of its evolutionary process, it was dismissed by the Historical Particularists as unscientific in the early 20th century. It was the neoevolutionary thinkers who brought back evolutionary thought and developed it to be acceptable to contemporary anthropology.
The neoevolutionism discards many ideas of classical social evolutionism, namely that of social progress, so dominant in previous sociology evolution-related theories. Then neoevolutionism discards the determinism argument and introduces probability, arguing that accidents and free will have much impact on the process of social evolution. It also supports the counterfactual history - asking 'what if' and considering different possible paths that social evolution may (or might have) taken, and thus allows for the fact that various cultures may develop in different ways, some skipping entire stages others have passed through. The neoevolutionism stresses the importance of empirical evidence. While 19th century evolutionism used value judgment and assumptions for interpreting data, the neoevolutionism relied on measurable information for analyzing the process of cultural evolution.
Idea of Homo evolutis:
There have been at least 25 prototype humans. We are but one more model, and there is no evidence evolution has stopped. Juan Enriquez and Steve Gullans, two of the world’s most eminent science authors, researchers, and entrepreneurs, answer this by taking you into a world where humans increasingly shape their environment, their own selves, and other species. It is a world where our bodies harbor 100 times more microbial cells than human cells, a place where a gene cocktail may allow many more to climb an 8,000 meter peak without oxygen, and where, given the right drug, one could have a 77 percent chance of becoming a centenarian. By the end you will see a broad, and sometimes scary, map of life science driven change. Not just our bodies will be altered but our core religious, government, and social structures as humankind makes the transition to a new species, a Homo evolutis, which directly and deliberately controls its own evolution and that of many other species. What makes this Homo Evolutis species so unique is that it "takes direct and deliberate control over the evolution of the species." Calling it the "ultimate reboot," he points to the conflux of DNA manipulation and therapy, tissue generation, and robotics as making this great leap possible.
We are already in the midst of minor improvements to the human body and mind; Enriquez gave examples of growing new tissues for successful transplant, programmable cells, and augmenting our abilities through robotics. As this trend accelerates, more and more aspects of the human experience, of the human life, will be capable of scientific manipulation. While some improvement may come post-birth, our understanding of DNA and biology may lead to something much bigger.
The day may come when we are able to take the best biology of the known animal kingdom and make it part of our own. This isn't just about being a bit stronger, or having perfect eyesight our whole lives. All of our organs and limbs have weaknesses that can be addressed, and there are also opportunities to go beyond basic fixes and perform more elaborate enhancements. Enriquez spoke of a young girl who, after suffering a knee injury, received tendon replacement therapy centered around tendons grown in a lab. It not only fixed her knee, but made it stronger than normal. Later in life as she pursued life as a professional skier, the coach actually asked that she have the same surgery on her other knee to increase her abilities.
The point is clear: one day it will be possible for everyone to have stronger joints, bones, etc., thanks to work being done today, work which may ultimately be delivered into DNA. We would become a species that could, literally, control its own biological destiny.