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fluoridationyesterday at 10:41 PM1 replyview on HN

I'm reminded of that paradox from sci-fi that says that starting an interstellar journey as soon as the technology is capable of it is uneconomical, because the trip will take so long that newer technology will arrive at the destination first, despite departing at a later date.


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hn92726819today at 2:48 AM

Spoiler alert if you haven't read it.

This happens in The Three Body Problem as well. A second ship is sent after the first and surpasses it. It's a great series.