Re:SoftBank unmasked as ‘Nasdaq whale’ that stoked tech rally
by MiroF on Monday September 07, 2020 @02:58PM
(#24401699)
Analogy seems roughly right, if it was a statement like "P=NP -> Markets could possibly be efficient" then I'd buy it.
But I think what's more interesting is that
"Markets (present-day) are efficient -> P=NP" could plausibly be true, suggesting that the contrapositive is true: "P!=NP -> Markets (present-day) aren't efficient." Given current state of thought around plausibility of P=NP, that seems pretty powerful nonetheless.
With the slightly stronger statement "Nobody currently possess a polynomial time algorithm to solve a problem in NP -> Markets (present-day) aren't efficient" it starts to become quite likely markets aren't fully efficient.
But I think what's more interesting is that
"Markets (present-day) are efficient -> P=NP" could plausibly be true, suggesting that the contrapositive is true: "P!=NP -> Markets (present-day) aren't efficient." Given current state of thought around plausibility of P=NP, that seems pretty powerful nonetheless.
With the slightly stronger statement "Nobody currently possess a polynomial time algorithm to solve a problem in NP -> Markets (present-day) aren't efficient" it starts to become quite likely markets aren't fully efficient.