The phrase "how far we've come" is notably recognized as the title of a song by the American alternative rock band Matchbox Twenty. Released in September 2007, this song was the lead single from their retrospective collection "Exile on Mainstream." The music video features a montage of significant historical events from the latter 20th century, symbolizing human progress and cultural developments. The song highlights themes about reflecting on progress and the passage of time through pivotal moments in history.

If the question is about the broader idea of progress or advancement in history, culture, or technology, the expression typically implies a reflection on achievements and changes over time, often with a note of both celebration and contemplation. Please specify if the interest lies in a particular area such as technology, social progress, or another context of "how far we've come."