Abstract
The evolution of human sociotechnical systems shows some trends that, though initially adaptive, may become inadaptive if the long run is considered. Technical progress, for instance, entails an increase of destructive powers and augments the efficiency of intraspecific conflict as a mechanism for self-consumption of the species. It can be foreseen that technical advancement, which up to now has increased the species' dominance and genetic fitness, beyond a given threshold may make this fitness decrease, possibly leading the species to extinction or considerable reduction. It is argued that this critical limit has been already crossed or will be crossed before long.
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