Kids have a greater probability of having photographic memory than adults. In a memory test, kids are exposed to a certain picture for 30 minutes. When asked to describe the picture, one out of 12 kids will describe it with astounding accuracy. In adults, this ratio comes down to 1:1000. The reason why kids have a memory closer to eidetic memory is that, they have a clutter-free mind, which enables them to concentrate in a better way.