If I told you that this piece of technology essentially created a functional semi-sinking ship, would you call me crazy? Well, call me crazy because it actually does exist.
You might wonder why on earth we would ever need a semi-sinking ship, considering that sounds like a completely useless piece of machinery.
This heavy-lifting ship is actually quite useful. It's used to move large loads that can't be carried by normal-sized ships. It's called the Blue Marlin and does all the manual labor that other ships would fail at.