[Tenacious 1]

What if some group hijacked the plane and had some black boxes they dumped into the ocean to monitor the search techniques?

Have we also considered that the plane might have flown into a black hole and is now somewhere else in the universe? Wait...

[mountainlion]

Have we also considered that the plane might have flown into a black hole and is now somewhere else in the universe? Wait...

That has not been disproved either.