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dgellowtoday at 1:34 PM1 replyview on HN

Depends on the time frame, no? Such a tunnel will exist for a long time (I assume)


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Jenssontoday at 2:55 PM

Yeah, governments invest on a different timescale than corporations. An investment like this typically enables future investments by other actors and adds up to a lot more than what you see currently.

For example a train station doesn't just serve the current people who live there, but the new town and all the new buildings that will be built around it as well. Infrastructure improves land value often by many orders of magnitude more than it costs to build.