There is no benefit. HFT does not lower spreads in reality, only nominally. They put in orders but back away when a matching order comes in. The myth is that HFT improves liquidity. It may look like that. But those orders aren't real and can't be fulfilled.
This is again how scientificism goes. We think machines improve everything. "If only we trade faster, that will help the markets!" It's not hard to see this is BS.
This is again how scientificism goes. We think machines improve everything. "If only we trade faster, that will help the markets!" It's not hard to see this is BS.