Plurgasm0285 t1_j6phodr wrote
Obsolete and retirement are totally different topics here.
Obsolete? They kinda are now.
Full retirement? Possibly never. Even if the world went the way you say it could they would be repurposed for exploration or floating hospitals.
Worst case scenario (non sinking) they become floating cities like in waterworld and fallout. Cause in this same hypothetical future we have low energy efficient desalinization capabilities.
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