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Re:Staff Report on Algorithmic Trading in U.S. Capital Marke... by bob1029 on Wednesday September 02, 2020 @09:00PM (#24359884)
IEX does something like this WRT a minimum delay. Tom Scott has a video on it:

https://www.youtube.com/watch?v=d8BcCLLX4N4

Re:Staff Report on Algorithmic Trading in U.S. Capital Marke... by kasey_junk on Wednesday September 02, 2020 @09:03PM (#24359902)
It’s not human scale though. It’s “big market participants computers scale”.