Pixel detectors have been the working horse for high resolution, high rate and radiation particle tracking for the past 20 years. The field has spun off into imaging applications with equal uniqueness. Now the move is towards larger integration and fully monolithic devices with to be expected spin-off into imaging again. Many judices and prejudices that were around at times were overcome and surpassed. This paper attempts to give an account of the developments following a line of early prejudices and later insights.
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