what kind of poor design would allow the entire ship to lose power all at once. They don’t have multiple generators and circuits for a ship that size.
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A shaft bearing could have failed, for example. Not possible to be redundant there. Failure on ships that large takes a while to fix or back ups to kick in. Its not some Tupperware day boat.
Gee ship is out of control? DROP THE FRIKIN’ ANCHOR!!!
Occasionally, you hear of cruise ships losing all power. It happens.