I think they know that the sub is gone, but because of 96 total hours of air, they will appease everyone and keep looking.
If it lost pressure...it's tinfoil, and not resurfacing as designed.
The other thing that I havn't heard mentioned with this, is that the Titanic sits on a shelf.
If the sub sank on that side of the ship, then it went to a distance that cannot be recovered(below crush depth), if even found, which would be unlikely.
Especially if their idea of the sub going into the ship and getting stuck is true.
If they can't find it in there...they aren't finding it anywhere else.
And, lets go down a couple rabbit holes, shall we, why not, lol.
With 4 billionaires on board, it makes you wonder if anyone had them killed?
And, at 10k' deep, right on the edge of another several thousand feet drop off...maybe a megalondon ate it...
Not alot of other possibilities, maybe, lmao
And again, I'm not laughing at others misfortune either...but they knew the risk involved.
Lets get in a sub, go 2 miles down, and look at a shipwreck, in pitch black, with only a spotlight, and hoping currents and sediment aren't blocking your veiw.
Yeah, sounds like a great idea...
Pass, I can see the edited version on the internet, and a better view...plus I save $250k