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by Retric 627 days ago
Durability isn’t free. No reason to build for 30,000 years when needs change over time.

Public infrastructure like bridges are designed to predictably decay over time so they can be maintained or replaced if they are still useful. Just look at the NYC subway system there’s tons of old tunnels that just aren’t useful today, they didn’t collapse but they still became obsolete and that’s inside a major city which kept it’s subway system.