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by fbdab103 876 days ago
There was a legal case where the speed of light was used to identify insider trading. Information was publicly disclosed at (fake numbers) 12:00:00:001, yet trades benefiting from the information came at 12:00:00:002, which was faster than possible for the information to have been learned and acted upon by the involved parties.

https://www.theverge.com/2013/10/3/4798542/whats-faster-than...