From the press release (http://www.kscopemusic.com/artists/anathema/):

The idea for The Optimist was born from the front cover artwork of the band’s 2001 album A Fine Day To Exit Daniel Cavanagh explains “I suppose you might say the album is semi-autobiographical because this time we used a surrogate,” he says, of the character that is The Optimist “We put sound, feelings and crucially, our own hopes and fears into another person and made him the subject of the songs then weaving my own internal monologue into the narrative of The Optimist. It was John’s idea to write a narrative, so I took A Fine Day To Exit as the starting point”. Vincent elaborates further on the earlier album’s artwork influence “The guy who disappeared – you never knew what happened to him, did he start a new life? Did he succumb to his fate? It was never explained. The opening track title is the exact coordinates for Silver Strand beach in San Diego – the last known location of The Optimist – shown on the cover of A Fine Day to Exit.