For Bergson, time was duration—something creating, developing, and somewhat mysterious, as opposed to abstract and measurable. According to him, all our problems conceiving of the true nature of time stemmed from wanting to imagine discrete moments sitting side by side in space. He further noted that this “space” was not concrete environmental space, but something purely conceptual: Think of that green-on-black grid that sometimes shows up in the virtual nonspace of sci-fi movies, and think of moments in this kind of time as cubes existing in that space. (This conception also provided the
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