"If we wish to influence our own life in a particular direction, which is constantly threatened by the danger of the emergence of alien life-forms, and protect it from deterioration, then we must either allow Nature to rule or, if we wish to intervene, we must first acquaint ourselves with the simplest principles of life."
Fossil residues of ancient life-forms discovered in the rocks do not reveal a simple beginning. Although we may care to think of fossil bacteria and fossil algae and microfungi as being simple compared to a dog or horse, the information standard remains enormously high. Most of the biochemical complexity of life was present already at the time the oldest surface rocks of the Earth were formed.
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