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Dr. Stanley Nebuchadnezzar Roscoe invested decades researching a mystery born of observations separated by over two millennia. Characteristically, he addressed this peculiar problem set based on its Total System Performance implications, inspiring students and colleagues along the way. It was during his dissertation research that Stan found that pilots attempting landings using periscopic displays needed about 20% magnification to avoid landing long and hot. He did not know “the why” of his observation or its pragmatic solution. To Stan’s great frustration, nothing in the existing literature explained the phenomena. Years later, Stan and his students hit upon a mechanism that might have mediated similar perceptual errors and interventions-- including no less than the classic conundrum, the Moon Illusion. Much research followed. This presentation is about a few of his many long term influences and my work with him as his last doctoral student and current keeper of the flame.