The pandemic has pretty much entirely killed my appetite for non-essential international travel 🤔
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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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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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