What is the kind of memory that remembers everything?

The kind of memory that remembers everything is often referred to as "hyperthymesia" or "highly superior autobiographical memory" (HSAM). Individuals with hyperthymesia can recall detailed memories of their life experiences, often with remarkable precision and vividness. This condition is rare and contrasts with typical memory function, where people may forget or distort details over time. However, it's important to note that even those with hyperthymesia may not remember every single event or detail.