The Australian Financial Review today reported that ASIC had told the inquiry into Australia's financial system chaired by David Murray the regulator would consider introducing a half-second clamp on trades to remove HFT's speed advantage.
HFT work by seeing the order in one exchange at one price, and the same thing is available in another exchange for a slightly different price, simultaneously buy in one, sell in another and pocket the difference. Plain arbitrage, something Commander Vanderbuilt apparently did back in the days when news traveled on horseback during the day time. And he traveled at night in his sailing ship and raced ahead of the news, dumping bonds from bankrupt New York corporations.
These exchanges communicate the prices between themselves and take slightly longer than 350 milliseconds for the news to travel between exchanges. These big trading companies have faster access to both exchanges and are able to act on them. Would it be enough to delay all orders by 0.5 sec? Even if one trading firm sees the price difference, before it could act on it, the news would have traveled and it could no play micro second arbitrage.
This is my understanding. It might mean any trader must hold the instruments for 0.5 sec before trading it again. Not really sure what the article means by clamp.
There is no evidence for this hypothesis, but I plan to capitalize on the first mover advantage. When the internet completely destorys all vestiges of religion and make everyone atheists, they will be looking for someone to mouth of fantastic things without any evidence to provide "meaning for their lives". I am going to be there on the mountain, mouthing of stuff like matter, anti-matter, quantum horizon etc etc.
So if macroscopic superpositions exist, there must be an algorithm that can solve this NP-hard problem quickly and efficiently.
Super position holds only for linear systems. All this analysis proves is, nature is not linear. That is all. It does not prove quantum mechanics comes from NP hard nature of some equation or another.
Using painted fake horses and sticky glue is does not mimic a real zebra skin that emits sweat & odors. Real skin has subtle temperature variation patterns etc. A badly designed experiment, unwarranted conclusions, not a complete literature study to be aware of other prior explanations, no attempt to design the experiment to bolster the new explanation against existing explanations
Will give a B for undergrad project, C for a masters project, D for masters thesis, and an F if it is part of any PhD level work.
Is it any wonder the gamers extend the "boundaries" of the game to include the entire gaming infrastructure? The gaming companies say, "these are the games, Here you can get hit other cars, or trick another user into losing they cyberberries. But this part is not a game, and you should behave honestly". The gamers see it holistically, they would steal the game from the gaming companies if they can, they will steal the cybergoodies from the companies if they can, they will run the game under virtual machines and use software to change the game state and cheat.
After encouraging and rewarding such behavior "inside the game", trying to discourage it "outside the game" is not going to work. The gamers do not agree with the gaming companies on what "inside" and "outside" of the game are.
Where there's a will, there's a relative.