How can there be any oil left at this point? I cannot wrap my head around it — with all of the cars and airplanes, plus all of the plastic that’s also made from oil. How in the world isn’t it all gone by now?
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Consider the question why wouldn’t there be oil left? What math makes you think we’ve already used it all up? You’ll immediately have your answer. (Solution: the amount we started with > the amount we’ve used.)
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