In fact, says Lampson, he and his colleagues were increasingly coming to realize that the decision to focus on graphics displays undermined the most fundamental premise of time-sharing—namely, that computers are fast and humans are slow. As he would express it in a later account, "[This] relationship holds only when the people are required to play on the machine's terms, seeing information presented slowly and inconveniently, with only the clumsiest control over its form or content. When the machine is required to play the game on the human's terms, presenting a pageful of attractively (or
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