What is credit assignment problem?

Example: You change your diet to reduce inflammation. The dietary change is real, but inflammatory markers shift over weeks to months, not hours. For the first ten days you feel no different. By day fourteen you are questioning the whole approach. By day twenty-one you have quietly abandoned it — not because it failed, but because the feedback arrived on a timescale your intuition could not track. Meanwhile, you immediately feel the reward of eating whatever you want. The fast loop (pleasure now) beats the slow loop (health later) not because it carries better information, but because it carries faster information.

This concept is part of Feedback Loops in the How to Think curriculum.