Flog61 wrote...
In this day and age, where we find treatments for the sick and can allow the disabled to lead almost normal lives, evolution has slowed right down. There is no survival of the fittest, there are no visible changes (our immune systems may become more advanced, but this is far from what synthesis entails)
I would also say that the whole idea of evolution is that one group evolves to outclass another, and to survive better in their respective environment. In this way, it seems a bit odd to expect every race in the galaxy to be at exactly the same stage of synthesis at exactly the same time, providing shepard does not choose synthesis in the end of me3.
Simply put: evolution does not work that way.
First, evolution has no goal, and is entirely about changes of genetic material over time. Survival of the fitest is so laughably simplistic. Evolution is more complicated than that.
Second, there are a few cases of 'evolution' I can point to in humanity "post technology":
1) Certain human populations retain the ability to metabolize lactose after childhood. This is a genetic trait, and counts as a change in genetic characeristics of humanity as a direct result of technology (namely, domestication).
2) Birth weights used to be sharply peaked, to wit, the weight people were when they were born all fell in a small range. WIth technology people outside of this range would survive child birth and early childhood at higher rates, and as such we've seen a spreading out of birth weights that cannot be solely described by better technology and actually represents a wider allelic frequency (aka change in genetic traits leading to a wider diversity of phenotypes).
3) Certain genetic phenotypes will go extinct. Particularly certain eye and hair colors. If our genetic makeup is changing enough to slowly phase out the natural existence of certain kinds of obvious phenotypes, then it is plausible that more complicated forms of evolution will continue to occur in humanity regardless of our technology.
I am sure there are others as these are only the ones I learned about in introductory college level biology courses.
Modifié par inko1nsiderate, 22 août 2012 - 02:04 .