Fascinated by this tree

On a recent trip to Hilo, I was fascinated by this tree, almost every leaf of which was scratched with names and memories.

There was something profound about seeing all these memories (and people) brought together on a living, growing thing. So much so that I lost all interest in the nearby waterfall... obviously, so did many others!

And as can be seen in this third photo, the record keeping spread to some other large-leafed plants.