It's important for all of us who are imposed with certain physical boundary conditions to push those boundary conditions as far as possible and maintain as much independence as absolutely possible.
To give you an idea about genetic variation between each of us, there are about three million differences in our genetic code. They go to influence the color of our hair and the color of our eyes, the way we walk.
The future of science advancements is endless. In this video Dr. Ted Conway discusses the possibility of thought to speech. One of the really interesting areas of research in biomedical engineering is thought to speech. The concept of thought to speech is fairly straightforward, the execution to make this a reality is a little more complicated.