There may also be auto-updating elements on the page such as countdowns, or a loading indicator which updates when the element is loading or done loading. These elements update _while_ the user is doing something else on the page. So, they won't know what the status of these elements is unless they are somehow made aware of them. Form success and error messages like the ones we saw in [the previous chapter](/chapters/form-validation-2/) are also an example of updates that are also not automatically conveyed to screen reader users.