The song is a beautiful piano-driven ballad; the song also contains a piano riff. Chris Martin opens the song and is joined by the rest of the band after the first chorus. The song begins with a three-chord piano melody, with Martin singing the song. The track also includes a string arrangement. Towards the end of the song, an electric guitar can be heard.

The song is written about love and regret, about a scientist who may have gotten too rapped up in his work and lost the love of his life "come up to meet you, tell you im sorry" "science and progress do not speak as loud as my heart". The lyrics to the song allude to the man's powerlessness in the face of love. The song implies that he wants to go "back to the start" to fix their broken relationship.

The video to the song tells a different story. A story of a man who loses his love in a car accident after she takes her seatbelt off to put on her jacket which subsequently leads to her being thrown through the front wind screen in the crash. The lyrics could now be interpreted as the man regretting not telling his love to put her belt back on. Its a truely beautiful song i hope you enjoy it :P Please subscribe! (less info)