> Just make all positions irrevocable for at least 10 seconds after posting
Sounds great for Wall Street. Spreads would necessarily widen as people buffer out. Meanwhile, you’ve turned every lit order into a 10-second option for market participants. Which means there is still a latency advantage to lifting or hitting a standing order first.
only if you make those bids visible. the bids are held in a buffer and at the end of the buffer, it either completes a trade or appears on the order book. iirc some market tried to do this with a literal loop with a physical latency.