Who knows the reasons a scientist may have for choosing the question that will shape his life's work. Maybe, when pondering life's great mysteries, he prefers the guidance of physics to that of religion. Maybe he has always dreamed of circling the Earth in the International Space Station, watching the sun rise every 90 minutes over the soapy blue of his home planet. Maybe he accidentally put a fork in a microwave one time. Or maybe it was the microwave thing, but with a grape.
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