As Brazilian authorities indicate the recently recovered debris is not from Air France AF-447, all forms of theories are popping up.
One theory that faulty sensors that may have given erroneous speed indications has prompted the airplane manufacturer Airbus SAS to issue warnings to operators of all A330 aircraft.
More preposterous theories abound that Air France AF447 collided with another aircraft, possibly a drug runner. At 35,000 fleet? Drug runners fly their aircraft low to avoid radar, not way up for all radars to see.
There is one theory that a meteor collided with the doomed jet. I would have dismissed it, but it is from the highly respected Discover magazine. The logic they use is possible; I am no way saying it is probable, but the article is worth reading at least from a mathematical perspective.
The one fact we know for a certainty is that the answers are buried along with the two black boxes on-board F-GZCP; the flight data recorder and the cockpit voice recorder, but finding them in the deep waters off the coast of Brazil will be a herculean task.