Millis' math is actually more optimistic than other studies, which have suggested you would need 100 times the world's total energy output to cover that distance.

事实上，米尔斯的计算要比其他类似的研究乐观许多，此前大部分科学家认为至少需要全世界100倍的能量才能航行同样的距离。

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Police officers hold the line as they remove belongings left behind after they cleared Civic Center Park, on November 12, 2011. (AP Photo/Leah Millis - The Denver Post)

2011年11月12日，在清理了市中心公园以后，警察们移除了遗留物品之后仍然严防死守。

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"Someone's got to think beyond the obvious," says Marc Millis, a propulsion physicist at NASA's Glenn Research Center. "You have enough other people in the world doing the next obvious thing."

“必须有一些人思考更深远的事物，”Marc Millis说，他是美国宇航局格伦研究中心的一名推进物理学家，“你已经有足够多的人在做着下一个普通的事物。”

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