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Re:Markets are efficient if and only if P=NP (2010) by benlivengood on Wednesday October 21, 2020 @12:35AM (#24844763)
Inefficient markets still work; you just have to regulate the arbitration potential so it doesn't eat too much legitimate profit and regulate scammers to protect information-poor people.

Hyper-optimizing just-in-time inventory and production practices and betting on the outcome at nanosecond timescales? Probably harmful.

Investing in useful businesses? Probably pretty beneficial.

Re:Markets are efficient if and only if P=NP (2010) by rocqua on Wednesday October 21, 2020 @08:59AM (#24847373)
> Hyper-optimizing just-in-time inventory and production practices and betting on the outcome at nanosecond timescales? Probably harmful.

Certainly, betting on nanosecond timescales seems very unlikely to be very beneficial for society at large.