Somewhat tangential, but I hope someday we can move more towards having stocks trade regularly but not on microsecond timescales. All of the fragmented liquidit

Somewhat tangential, but I hope someday we can move more towards having stocks trade regularly but not on microsecond timescales. All of the fragmented liquidity being exploited by HFT is not a net economic gain. The exchanges already have an auction process to set opening and closing prices. Just run the same auction process every 10 minutes allowing liquidity to pool.