Imagine I have three space probes that I send out radially. They have a superluminal way to determine each other's relative position to each other instantaneously. If each one measures the relative position of the other two and comes up with an angle for them, how far away would they have to be from each other before the sum of those angles became noticeably not 180 degrees?(adsbygoogle = window.adsbygoogle || []).push({});

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# Over what scale is curvature measurable

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