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A comment on Markets are Efficient if and Only if P = NP. Parent comment

Re:Markets are Efficient if and Only if P = NP by Rickasaurus on Wednesday August 17, 2011 @09:13PM (#2897578)
The point though is that whoever has the most computational power has the most power to exploit arbitrage.
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Re:Markets are Efficient if and Only if P = NP by peteretep on Thursday August 18, 2011 @05:00AM (#2898514)
That's /a/ point. Whenever people start harping on about Market Efficiency, you need to find out "why do you care?". The answer to "Are markets efficient? I have this hot stock tip I read on Tech Crunch" then the answer is yes, because other people have more time, money, expertise and - as you point out - computational power - as well things like preferential data access and physical proximity to the exchange.
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