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McLuhan’s “the medium is the message,” extension and amputation, hot and cool media, rear-view mirror effect, and four laws of media offer a way to dissect AI and its deeper effects on our cognitive habits, capacity for understanding, and social structures.

AI is reshaping knowledge work far faster than historical experience would suggest. The real challenge is not whether you know how to use AI, but whether you can retool your thinking and skills before the adjustment window closes.