How Are Successful Hypotheses Possible?

Poppe writes that kart's own solution to his problem was a strange mix of absurdity and truth. He tried to say that our minds impose physical laws on to reality. We produce laws in the same way we kind of digest food, he says. So kant is suggesting that natural science is not merely possible, it is necessary given our mental make up. Papa frames this as the question, how ae successful hypotheses possible? Now papa writes his own paperian answer, so i'm just going to read it beginning-end here in full.