> What if the last element on a page is deleted when you click "next"? That makes absolutely no difference. You're still querying the database for elements tha

> What if the last element on a page is deleted when you click "next"? That makes absolutely no difference. You're still querying the database for elements that come after a value from a data type for which there is an order. You don't need that element to exist to run a comparison. For example, consider a timestamp-based query: you don't need an element with that specific date to exist to search for any element whose timestamp was taken after an arbitrary moment.