We are sure that in as geek-heavy a city as Boston this observation has been made before but this is an acromymn that bears repeating. The Borg are a race of sentient machines that devour organic life in thier path for thier own, group-think purposes in the Star Trek mythos (the Next Generation). The letters arrange quite nicely if a Bostonian travels from Wonderland to State Street to Downtown Crossing to Park Street Station for a trip out to Riverside.
Of course life lived pressed close to the flesh on the MBTA is more free and lively than that conjectured in sci-fi telenovelas. Isn't it Charlie? If there can be a Silver Line, can there be more than one Borg?