[I_dream_of_Geni]

"The capsule is strong enough to survive a storm at sea or getting crushed between two icebergs."

The first part is probably true. The second part is folly. "Remember the Titanic".

[nkoren]

Agreed. There are mountains that don't survive getting crushed between two icebergs. If the sphere were made of solid tungsten, then okay, I'd buy it. Short of that, I have doubts.

[sandworm101]

Correct. The forces involved when icebergs move are vast. This thing will be crushed like a coke can. Even a deep-sea titanium sphere might not survive such an asymetric load as being crushed between a berg and a rock.

[danielbln]

The Titanic wasn't crushed, it was sliced, wasn't it?

[vineyardmike]

The titanic was advertised as unsinkable and we know its history.

Advertising this capsule as uncrushable is a commensurate gamble.

[margalabargala]

Just make it out of carbon fiber. That's what they did with that uncrushable submersible that went to the Titanic.

[UncleEntity]

I'm pretty sure the issue was with 'move fast and break things' and not using carbon fiber.

I think it was on the youtubes I was watching a story about how they built that thing and it was <spoiler alert> not really fit for purpose. I mean, no big surprise in hindsight.

[jjmarr]

Carbon fibre has poor compressive strength and good tensile strength.

That makes it inherently bad at holding pressure from outside in a submarine and good at holding pressure inside a spaceship or airplane.

[IAmBroom]

Designed, paid for, and piloted by a complete jackass, but... He never claimed it was uncrushable. He claimed it was safe.

Still completely wrong about that, obv.