Astrobiologists are coming up with a framework to study how complex systems evolve.
ArticleBody:This article was originally featured on The Conversation. We have only one example of biology forming in the universe – life on Earth. But what if life can form in other ways? How do you look for alien life when you don’t know what alien life might look like? These questions are preoccupying astrobiologists, who are scientists who look for life beyond Earth.
Two researchers present argued that complex systems of chemicals or minerals, when in environments that allow some configurations to persist better than others, evolve to store larger amounts of information. As time goes by, the system will grow more diverse and complex, gaining the functions needed for survival, through a kind of natural selection. They speculated that there might be a law to describe the evolution of a wide variety of physical systems.
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