[Right_Wing_Madman]

Two prevailing theories:

1. Sub imploded about two hours into the mission.
2. There was a fire on board.

There were many problems with this vessel:

- Supporting staff was all under age 30 with little or no sub experience.
- The 5-inch-thick carbon-fiber material was never fully tested at 4000 meters depth.
- There were no gas safety monitors on board to check O2 and other gas levels.
- There were no extra oxygen tanks and masks on board.
- 96-hour life support system was never tested with a full crew on board.
- The hatch could only be opened from the outside.
- There was no emergency transponder in the vessel.
- PlayStation joystick to control the vessel was wireless and there was no back-up system if it failed.
- Communications system was not voice capable and had a tendency to black out.

So basically, it was an underwater coffin.

[algore]

I have never been a fan of wireless.

My “landline” has had 99.999% uptime I wish my datacenters did.

[Liaison]

Alternate explanation: Could have one of the members of this expedition decide to stay down with the titanic and take the rest with him?

[Equine1952]

If it imploded they won’t find wreckage or bodies. Steel in USN submarines is designed to combat brittle fracture and fatigue cracks. I don’t have a clue about carbon fiber. Implosion is nearly instantaneous, suffocating not so much. Prod the bull enough times you get the horn. Still a damn shame though.

[BenLurkin]

Somebody here was saying that the boat used pure oxygen for breathing. Is that the case? Like Apollo One?

[WoofDog123]

if I didn’t know this was apparently true, it would be too absurd for a parody.

[battousai]

Two prevailing theories:

1. Sub imploded about two hours into the mission. 2. There was a fire on board.

There were many problems with this vessel:

- Supporting staff was all under age 30 with little or no sub experience. - The 5-inch-thick carbon-fiber material was never fully tested at 4000 meters depth. - There were no gas safety monitors on board to check O2 and other gas levels. - There were no extra oxygen tanks and masks on board. - 96-hour life support system was never tested with a full crew on board. - The hatch could only be opened from the outside. - There was no emergency transponder in the vessel. - PlayStation joystick to control the vessel was wireless and there was no back-up system if it failed. - Communications system was not voice capable and had a tendency to black out.

So basically, it was an underwater coffin

Give credit where its due, that is a list that comes from Sub Brief, the excellent YouTube channel run by an ex US submariner:

The Titan Tragedy

[mware]

The investigation into this will be interesting. Like why did they wait 8 hours to report the incident?