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tx-transform is a film technique that transposes the time axis (t) and one of the space axes (x or y) with one another. Normally, each individual frame of the film depicts the entire space, but only a moment in time (1/24 second). With tx-transformed films, it is just the opposite: each frame shows the entire time, but only a tiny portion of space – if one cuts alongside the horizontal space axis, the left portion of the picture turns into the “the before”, the right one into “the after”.