Nah man. The average distance between the user's eyes and the screen is 3 feet, and light travels one foot for every nanosecond. So 3 nanoseconds for the light to get from the screen to your eyes is much shorter than milliseconds. What would be more accurate to say is that the lag time between your brain being able to process the information, and then acting upon it, is the bottleneck, because that takes a whole lotta' milliseconds.
I skimmed through his "Trading Price Action Trends" because he claimed to follow institutional order flow. As someone who was an institutional trader, I can guarantee you that Al has no idea how institutions actually trade or how to spot their movement. I kept looking for more on a theory that unified price and action and didn't find anything at all. If you want to spend money on books, subscribe to the journal of finance or portfolio management. You'll learn a lot more plus they actually give you the background info so you can retest it yourself.
I have watched much of his trading course and he never once mentions "institutional order flow". Is that a journal about day trading the ES emini?
you have not read his books then. no, the journals are comprised of the latest academic papers in the space. this is the stuff real traders/fund managers use to learn about markets (outside of their own prop research). you could stitch together a coherent thesis about what drives anomalies intraday and use that to trade e-minis. more likely you'll find that e-minis don't actually provide as many opportunities as you'd like, so you would move to a better asset class. this month's edition: The Journal of Finance: Vol 76, No 5 (wiley.com) an actual paper from it: Prospect Theory and Stock Market Anomalies - BARBERIS - 2021 - The Journal of Finance - Wiley Online Library
I have not read his books, no. My experience with Brooks is limited solely to his youtube channel and his video training course. While he speaks of institutions I have not heard him once claim any special insight into their "order flow".