The universe is enormous, and yet it seems to follow certain patterns. What we are seeing today is the result of the dissipation of the enormous energy burst that came with the big bang, some 14 billion years ago. The dissipation occurs in steps, as it is typical of dissipative systems, forming a trophic chain of energy stocks that has some parallels with the kind we know in Earth’s ecosphere. In this giant chain of beings, our role seems to be of “star parasites,” growing on the light emitted by a star which, from the viewpoint of the star, is waste. 

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