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What is a time cone?

Updated: 4/28/2022
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15y ago

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If by "Time Cone" you mean a Light Cone (http://en.wikipedia.org/wiki/Light_cone), then a light cone is a graphical construct depicting how causality (how event A can affect event B) works in the universe. The actual "cone" is a flash of light - the fastest any information in the universe can travel. Anything inside the cone (nearer to the time axis) can be influenced by (or can influence, depending on the orientation of the cone) an event occurring at the same time as the flash. Anything outside the cone (closer to the space axis) can neither influence nor be influenced by an event happening at the same time as the flash.

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Q: What is a time cone?
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