Original sentence: As web browsers have evolved, many of these limitations have been lifted or worked-around, bringing so-called rich Internet applications closer to desktop-application–like functionality.Comet is one of the ways to address this limitation, allowing applications to respond in real time to events external to the browser, such as updates to a real-time data source, or messages sent by another user
Edited sentence: As web browsers have evolved, many of these limitations have been lifted or worked-around, bringing so-called rich Internet applications closer and closer to desktop-application–like functionality.Comet removes this limitation, allowing applications to respond in real time to events external to the browser, such as updates to a real-time data source, or messages sent by another user