14. Memory, like photographs, is a message posted forward into a future it cannot yet imagine.
Within the memory centres of the brain, the codes for storing memory are transmitted along nerve cells which reach out like tendrils to other nerve cells, laying down new networks of connections.
But memory can be scrambled and erased, leaving only traces of the original, a neural palimpsest. New memories are encoded, new layers of memory are inscribed on this palimpsest.