In this paper I focus on a use of an idea of evolution in transhumanist discussions about technologies, human enhancement, and a concept of posthuman. Charles Darwin’s evolutionary theory stands at the origin of transhumanist thought and provides a theoretical foundation for many contemporary transhumanists. However, in the paper I argue that the idea of evolution used by these writers mostly cannot be interpreted as direct continuation of Darwin’s notion of evolutionary theory. The text is divided into three sections. The (...) first section deals with Kurzweil’s term of evolution of our universe heading to the singularity. In the second section, I point out a metaphor which occurs in some transhumanist texts – the comparison of childhood and adulthood to natural and conscious evolution. The last section focuses on connection between the notions of progress, evolution, and human enhancement. (shrink)