It's not built all at once, or replaced all at once, but there's always a part of it here or there which is upgrading
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most infrastructure works the same way--even if new tech doesn't make old versions obsolete, wear and tear ensures need for maintenance
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Infrastructure has to be managed in a "play to keep playing" mindset, not a "play to win" mindset. Build for replacement, not permanence
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When you build infrastructure that's designed to last too long, you can end up in a situation where nobody knows how to repair it when due
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There's a similar problem when infrastructure is built in a place which can't support its upkeep--
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You need your infrastructure to be replaceable, and you need the replacement to be scaled to the economy that relies on it
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Why did the Hokkaido Shinkansen's first segment connect Hakodate and Tokyo, instead of connecting somewhere to Sapporo?
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Because Tokyo can support a high speed line all the way to Hokkaido, but Sapporo can't (on its own) support one at all!
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If you're a small town--let's say Whately MA--and you have a limited-access highway running through town, is it bc of your town's economy?
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No, it's because your town is conveniently situated along a route that's anchored in a much larger economy (in this case, NYC)
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If such a highway weren't anchored to *any* such larger economy, it would still be paid for by the products of such a larger economy...
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...but as a money sink, never returning the value it's consuming. It's like a bad farm where determination to cultivate *all* the land...
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...despite the fact that some of it is, say, barren rock, ends up in ruin because the seed grain from productive patches was wasted on rocks
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Same in Britain, every weekend it's closed for 'engineering work' and you get put on a bus
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The difference is that construction on Odakyu and Tokyu never interferes with regular service, they work around the trains
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If only Network Rail could do that, instead we got the Satan-spawn that is the Rimini pack and red zone working rules
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weird interstate highway system apologist post
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