Memories are a complex process involving different parts of the brain. The hippocampus plays a crucial role in encoding or creating memories. However, it's not entirely accurate to say that the hippocampus is the primary storage area for memories. It's more of an intermediate storage area, holding onto memories for a significant amount of time. The long-term storage of memories, on the other hand, is believed to occur in the cortex, the outer layer of the brain. This understanding is based on various studies and observations, including the case of a patient known as HM, who could remember facts from before his surgery despite having no hippocampus. However, it's important to note that memory storage in the brain is a complex process and interpretations can be complicated.