Memories are like sparks that smolder under the ashes, but when you unfold them, they come alive again and again, Goethe once said. Without memory, the ability to learn would also be meaningless, as we would not be able to remember what we learn. And if you think that the memories in our brain are stored as data in the working memory or on the hard disk, you are wrong, because while the computer stores information in specific places, the brain stores fragments of the memory of the same thing at different ends. And when we recall a memory, nerve impulses from individual parts of the brain assemble these fragments of memories into a meaningful whole. But why do we (re)store some memories, while others are swallowed up by a "black hole"?
