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Cones of Possibility

In a large stadium, you can often see an event on the field before you can hear it. From a distance, the sound of an event, like a ball hitting the post, always follows the experience of seeing it happen.

This misalignment on your senses is a consequence of sound's finite speed. Light, like sound, has a finite speed, so you may wonder, "Do some events occur a long time before we see them?"

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