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in 1968 Doug shown the future that he built in his laboratory and the rest of the world (read Steve Jobs) arrived 16 years later with his Macintosh. Later, the same Steve Jobs, conceived the iPad and placed in retirement the computer as we know it. Just 26 years later the first Macintosh. The mouse had a shining and short life, and Doug and Jobs leaved a sign in the world history. However the time frame [16+26years] teach us that we are leaving exponential times.