No, to clarify, we set limits, just like you do. However, I never worked in the HFT department. The only difference is we play poker, I am the dealer and I know everyone's cards in the casino, but all iHubers only know their own cards. Is that fair?
But when we go to pee or poo, we set our limits and the computer takes over, just like you. But I know how to out bid you (not you in theory), but all the others too.
My computer takes over as I set it. The guy or gal sitting next to me does not touch my assigned stocks without permission. Unless I am on vacation.
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