So we can finally define difference between transhumanist and non-transhumanist. Transhumanist is a person who believes that science and technology should be used to make humans happier, smarter and able live as long as possible. Non-transhumanist is usually a person who believes the same except that he technology used in that process should not be too strange compared to the one he is already used to.

Heh. This makes me define a transhumanist as someone who believes the Law of Unintended Consequences could not possibly apply to him.