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A comment on Hong Kong Exchanges Bids $39B to Take over London Stock Exchange. Parent comment

Re:Hong Kong Exchanges Bids $39B to Take over London Stock E... by SolarNet on Wednesday September 11, 2019 @01:01PM (#20942285)
I mean more counter examples are great but any one aware of NP=/=P should be able to call bullshit on market's predictive ability.
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Re:Hong Kong Exchanges Bids $39B to Take over London Stock E... by wahern on Wednesday September 11, 2019 @01:18PM (#20942488)
FWIW, someone took the time to formally state the case: "Markets are efficient if and only if P = NP", https://arxiv.org/abs/1002.2284
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Re:Hong Kong Exchanges Bids $39B to Take over London Stock E... by dragonwriter on Wednesday September 11, 2019 @05:19PM (#20944830)
> any one aware of NP=/=P

Wait, someone finally proved P ≠ NP?

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Re:Hong Kong Exchanges Bids $39B to Take over London Stock E... by SolarNet on Wednesday September 11, 2019 @06:14PM (#20945359)
No, but it's generally understood to be very unlikely [0]. And if something as well studied as markets exhibited NP in P behavior we would have exploited it by now (FWIW, markets appear to be an efficient approximation algorithm like evolution is; approximation algorithms (like evolution) being something we use all the time to solve engineering problems).

[0] https://www.scottaaronson.com/papers/npcomplete.pdf

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