This other variety of antifragility is evolutionary, and operates at the informational level—genes are information. Unlike with hormesis, the unit does not get stronger in response to stress; it dies. But it accomplishes a transfer of benefits; other units survive—and those that survive have attributes that improve the collective of units, leading to modifications commonly assigned the vague term “evolution” in textbooks and in the New York Times Tuesday science section. So the antifragility of concern here is not so much that of the organisms, inherently weak, but rather that of their genetic
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