> Of course it's arbitrary. And the current time resolution (a computer tick = one ten-millionth?) is just as arbitrary. So why should we change it? > The mar

> Of course it's arbitrary. And the current time resolution (a computer tick = one ten-millionth?) is just as arbitrary. So why should we change it? > The market is a man-made system, it's made by and for humans. It would make sense that the time resolution of events is mapped to human perception: You need subsecond liquidity because traders want to perceive their orders as being immediate. But as soon as the order looks immediate, you don't need further precision. The additional resolution is useless to anyone making decisions and only encourages a stupid race that requires immense investments. I don't follow - by that logic, everything created by humans shouldn't have resolution greater than what we can perceive. Does this hold for, say, HTTP requests, or pings? > Can you explain what you think is the value in submillisecond trading? It allows me to complete trades before the market turns against me. In the absence of any particular harm, faster execution is better.