In 1832, the swiss crystallographer louis Albert Necker discovered his famously ambiguous cube, which seems to jump back and forth between two orientations. Given the same raw data ― a particular arrangement of a dozen line segments ― our brains find different ways to interpret it. Although optical illusions like this one are loads of fun, they have no obvious practical use. However, a recent project reminded me that the ability to switch frames of reference is a powerful lever that can do real work with data.
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机译：1832年，瑞士晶体学家路易斯·阿尔伯特·内克（Louis Albert Necker）发现了他著名的模棱两可的立方体，该立方体似乎在两个方向之间来回跳跃。给定相同的原始数据（一打特定的线段布置），我们的大脑会找到不同的解释方式。尽管像这样的错觉是充满乐趣的，但它们并没有明显的实际用途。但是，最近的一个项目提醒我，切换参照系的能力是可以真正处理数据的强大杠杆。
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