Why is it self reinforcing? Is it inherent to economics or is it psychological? If bacon goes back down 25%, will the local breakfast shop see those savings? Wi

Why is it self reinforcing? Is it inherent to economics or is it psychological? If bacon goes back down 25%, will the local breakfast shop see those savings? Will they pass them on to their customers? Or will their supply chain or the restaurants themselves absorb the profit and keep the prices high for consumers? Even if they keep the prices heightened, if they don't raise them further, then that'd be a leveling off of inflation, right?