Pervasive is as pervasive does and does until your name as a creator vanishes and only the concept or its functions remain. Smudged into a picture drawn in sand the tide of new invention carries back out to make room for the new painters of sand. There is an art here that carries all the importance of the Impressionist. Representing human ideas in machine readable formats so they are readable at some derived level by other human beings or at least providing some useful purpose. Instead of brushes or canvas these artist created a new medium. Gone and perhaps forgotten, maybe just carried out to sea to allow the creative process and its raw material the sand to used by another.