Why would there be an AI winter? Was there a car winter after cars became a growing product? Was there a processor winter after microprocessors became a growing

Why would there be an AI winter? Was there a car winter after cars became a growing product? Was there a processor winter after microprocessors became a growing product? ERP software? Didn’t the previous AI winter happen because the hardware wasn’t advanced enough to make the technology useful to most people? Since that is no longer the case, why this consistent belief that there will be another winter?