With talk of advancements in science and technology being used to improve the human condition (such as Transhumanism), there are also theoretic models for biological and genetic modification through technology. For instance, say we had the technology to intrinsically change gene expression through physicochemical interactions between regulatory transcriptional behavior and cellular mechanisms. Then basically I could change my entire phenotypic makeup. If I wanted certain physiological characteristics and I had this biological technology, I would simply change my hair color or eye color at my own fancy.
Yet at the same time, this has severe ethical implications. For one, it rids one almost entirely of identity. So, the question is, what are the advantages and disadvantages if we had such a technology in the future? Is it ethical or not ethical to have such a technology in society?
Here is another instance. What is we had the technology to completely eliminate gender in the human species or make it where having a gender is optional (Postgenderism)? What do you think on such issues?