Take HN as an example. This can't be done as a static site. Or a simple guestbook or hit counter. Where the lines may blur is JS front end talking to a BaaS..

Take HN as an example. This can't be done as a static site. Or a simple guestbook or hit counter. Where the lines may blur is JS front end talking to a BaaS... This may make it possible to glue up impressive sites using just HTML and JS with no custom backend requirement.