Why do you think the direct participants in the market are primarily humans? There are many automated, non-HFT strategies participating in the market which want

Why do you think the direct participants in the market are primarily humans? There are many automated, non-HFT strategies participating in the market which want, and benefit, from having a time resolution much smaller than what humans can perceive. Also, to your third point -- as a market maker, more information is strictly better than less information (as a corollary, shorter time resolution is better than longer time resolution). Any time I have less information, my predictions are worse, my risk goes up, and I have to either quote less or wider, making liquidity worse and hurting other (non-HFT) participants.