I think this is one of the main points in moonwalking with Einstein, discussed in a sister thread.

By the end of the book, the author wins the American memory championship and the following day he forgot where he parked his car.

These memory techniques are like a notebook. They won’t make you remember stuff any better, but if you wrote something down (in your memory palace or notebook) you can look it up.

For storing random key value definitions, mine seems to work that way. But it kind of helps me to think of memory as a network of interconnected bits. One random point will be hard to get back to, but if you have a dozen related bits of information that all link to one bit, it will be easy to find your way back to it and recall it. Building a solid base of knowledge and understanding of a subject helps to build these interconnected networks.

Can't remember.