Finding a single record by id with ember and ember data

Why can't I pass the Id as a parameter in this scenario:

App.Router.map(function () {
    this.route("home", {path: '/'});
});

App.HomeRoute = Ember.Route.extend({
        model: function () {
           // return this.store.find('post');//works
            return this.store.find('post',1);//does not
        },
        setupController: function (controller, model) {
            controller.set('info', model);
        }
    });

Fiddle: http://ift.tt/1AfbmDo

Ref: http://ift.tt/1AfbmDs

I know I am trying to do this from my 'home' route so I would guess that if a created a posts/[:id] route it would all work a lot better.

How can I return only one post in my home route?