I think we can all agree that the debris "seen", but not retrieved, including the alleged airline seat is key.
There's just two things I don't understand.
If it broke up in air, supported by the account of the spanish pilot, where are all the bodies, seats, hand luggage, pillows, blankets, books, newspapers, etc, etc, you know, that fills a transatlantic flight cabin ?
If it was intact when it hit the sea, aside from a decompression (reported in the 24 alerts) which somehow didn't tear the plane apart, or suck all the debris out earlier, we agree the plane would have broken up on impact, again, where is all the bodies and cabin debris ?
We've just got to be looking in the wrong location, by some distance.