The faster part is certainly not a matter of debate. The better less so and it depends a lot on the area. High Frequency Trading they essentially dominate and g

The faster part is certainly not a matter of debate. The better less so and it depends a lot on the area. High Frequency Trading they essentially dominate and given what I heard also really prove their role's legitimacy as arbitrage as more HFT bots drove down the margins in a move towards uniformity - just like arbitrage should. They are prone to some occasional "dumb" errors however - like humans but different those which attempt to predict trends using feeds like Twitter have caused losses as they fail to get the context. And it depends on the area and how you define algorithm and trading. Your bank has lists of requirements for mortgages beyond legal minimums - essentially already following an algorithm but due dilligence involves humans in the loop.