Yeah, they could have all passed out due to bad scrubbers, and still be alive, possibly, with the sub non-responsive. But they are way overdue.
David Pogue
You may remember that the @OceanGateExped sub to the #Titanic got lost for a few hours LAST summer, too, when I was aboard…Here’s the relevant part of that story. https://t.co/7FhcMs0oeH
faktoider
I assume anyone who wanted to board the Titan had to sign the waiver? ”An experimental submersible vessel, that has not been approved or certified by any regulatory body, and could result in physical injury, disability, emotional trauma, or death.” (2:40)
https://twitter.com/faktoider/status/1670902034109800451
They could also be caught up in an abandoned fishing net....