Is There a Feedback Loop?

In the book, you talk a lot about free will in your constant refrain that you have. And so, i mean, if the future is basically fixed, then presumably it could be, i don't know'. It's weerd to think about, but yesss, what you could do is, e, you could take the your prediction device and the human and the marshmalow and whatever,. An pu put tis together in a box, which is a close system, and then you can make a prediction for that. But whil i'm saying what, what doesn't necessarily work. I mean, there are cases where it does work, because you just do what what