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DevOps has evolved since its infancy, over a decade ago. Swiss developmental psychologist Jean Piaget believed human cognitive development has four stages (sensorimotor, preoperational, concrete operational, and formal operational). Through each of these stages, the human mind obtains new knowledge while building and modifying memories to inform one's understanding of the world around them. In the same way that people go through stages as they grow, markets and industries also go through stages ...