The explanations are a bit murky, but it seems that the problems are less technological than they are the fact that the project has been hijacked by a mysterious higher power, which is using Sam's leaps to fix what once went wrong.

It was probably in Paris, the chief intellectual centre of his time, that Neckam heard how a ship, among its other stores, must have a needle placed above a magnet (the De utensilibus assumes a needle mounted on a pivot), which needle would revolve until its point looked north, and thus guide sailors in murky weather or on starless nights.

It was impeccable musicianship beneath the vocals, yet the musicianship was buried by a thin, murky sound.

Since then, he has retired two famous photographs, featuring one bride and her dress engulfed in flames and another in murky water.

The plot is murky, involving a trade dispute, blockades, Jedi undercover, and an underlying story - just begun in this film - of a sinister force gathering power in hiding.