Well, the whole island is eroded down to bare stone, but that’s not what I mean. I don’t mean a negative force but a positive one. Look how the water flowing from one of the thousands of nameless falls of the country erodes a path that leads humans to it.And look how the erosion of lichen makes a path, which humans will follow, although it is no more even than any other line through the rock. And look how water carves a quite different path. By the looks of it, it was probably a farm or fishing hut path, which humans or their animals made and water has followed. And look how the erosion of a new post-glacial slope has concentrated its finer deposits, creating an environment for life. Amazing!