alt Hacker NewsEvery time I see somebody make an argument about "externalities" it's never actually backed up with any fact-based analysis about the magnitude of them. It's always exclusively vibes-based, "this thing you like is too cheap, it should be prohibitively expensive to make up for the thing I just thought of"
How do you expect people to discuss them across the scale of a whole economy without giant spreadsheets? Externalities are a well understood economic concept whose study goes back a century.
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