Old web 1.0 applications, however, let you do a lot more than traipse through an API by clicking on stuff: you can send emails, update documents and on an on, all through links and forms. The HTML, in this system, does "carry along" all the API information necessary for the client (the browser) to interact with the resources it is representing. It relies on the human user to select exactly which actions to take, which is why I say "HATEOAS is for Humans", and wrote an article on exactly that.
