because also step-by-step but in each step it uses attention so here is the input tokens and as you can see it goes in this direction so each one of these and these are multiple layers of attention so you can also layer these of course so each one of the attention intermediate steps can only attend to whatever is to the left of it right you can see this here so it goes step by step and it goes left to right basically so it can it can kind of take the sequence in as a left to right input basically what that means is whenever