by Stanislaw Lem (1967). A thoughtful reflection on evolution, self-organization, and the inability to communicate with a radical different life form. This short book takes the form of a science fiction novel in which a space ship, the “Invincible,” lands on a desert planet and is confronted by totally alien machine-life. After the death of a civilization of biological creatures, their surviving machine artifacts fought each other and finally, after eons of selection pressure, evolved into tiny, cellular-like, hexagonal organisms that can aggregate – if the need arises – into gigantic cloud-like colonies with highly adaptive behaviors. Written many years before the birth of Artificial Life, Lem is pessimistic about the possibility of fundamentally incompatible creatures understanding each other.