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If I travel n miles roundtrip, I need to spend 1+ (3*number of visas)+(n/6000)^2 days at minimum for it to be worth it, and fill those days with some mix of stimulating and well-paid work, home-level comfort, genuinely unusual leisure to be worth my time, energy, and the carbon.
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For a destination on other side of planet where I need a visa, (except India), it works out to: 1+3+(24,000/6000)^2=20 days For LA to NY, it’s 1+0+(5400/6000)^2 ~= 2 days Min 1 day, so overnight. Even west-coast day trips are too annoying. Up early/back late is brutal.
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Once again, the best cost function turns out to have time units
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This thread inspired by a spreadsheet scenario model I've been building this morning to analyze some personal life financial strategery. Interestingly, the cost function I ended up with in the model was "number of unfunded years" The best cost functions all have units of time
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