PhotoReading puts the information into the long-term memory. However, like remembering what you had for breakfast, on January 18, 2007. It winds are deep in your long-term memory. Unless you make effort to call it up the first time, using activation techniques it can remain inaccessible in the long-term memory. It's a case of use it or lose it.
Activation creates and strengthens the neural networks, that make the memory access of all.
AlexK