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How “group velocities” can exceed speed of light without carrying info (2000) (gregegan.net)
12 points by keyi on April 8, 2018 | hide | past | favorite | 1 comment



Science magazines like New Scientist have roughly once per year sensational faster than light scam article that uses group velocities as excuse to make headlines. First half of the article is a buildup, then they have one or two sentences that mention it's actually group velocity in action.




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