Markets are efficient if and only if P=NP (2010)

Re:Markets are efficient if and only if P=NP (2010) by Judgmentality on Wednesday October 21, 2020 @03:03AM (#24845413)

They might just be statistical outliers. Given infinite time, would any investor beat the market? That's the real question (sticking to the mathematical theory here).

Be careful before holding up a single example as an exception to the rule. Some basic statistical analysis show there was a 30% chance the Red Baron, the most famous WW1 fighter pilot, was just lucky. And obviously his luck eventually ran out.

https://www.scientificamerican.com/article/news-bytes-red-ba...

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Re:Markets are efficient if and only if P=NP (2010) by anm89 on Wednesday October 21, 2020 @03:07PM (#24850987)

Or thee might not be. If your burden of proof is that no data is valid because new data might come in that disagrees, then sure it's easy to see why you can't acknowledge that someone has disproved the theory. It also makes the theory unfalsifiable ie meaningless. So we are right back at it not being meaningfully true.

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