Yes they have not found one shred of that plane. If it went down in the ocean there would be debris and bodies floating.
The black box has a transponder and its pretty indestructable.
Somebody correct me if I’m wrong but if the tower loses voice communication that does not mean the plane just goes off radar. They would still be tracking it on radar unless it finally got down to the 500 ft level or whatever.
Supposedely the Rolls Royce engines were still sending out info every half hour for 4 more hours.
The whole thing is just bizarre.
Ever heard the term “below the RADAR”? That’s possible here, I suppose.. But what about tracking via satellite?