Essays and engineering notes by Jørn Otto Hansen on software, data and experiments.https://nordicproductions.noenhttps://nordicproductions.no/papers/life-is-will-to-powerhttps://nordicproductions.no/papers/life-is-will-to-powerThis week a TikTok of Plato and Nietzsche face to face put words to how I think. Plato looked for truths that never change. Nietzsche said life is will to power: the drive to grow and overcome yourself.Wed, 30 Sep 2026 00:00:00 GMTPhilosophyPhilosophyNietzscheThinkinghttps://nordicproductions.no/papers/bike-maker-datahttps://nordicproductions.no/papers/bike-maker-dataThree problems at one bicycle maker, solved with data. Where it misses its targets, which bikes break and whether it pays to check them, and a former employee who left in 2013 but was still logging in every day in 2022.Tue, 29 Sep 2026 00:00:00 GMTData ScienceBachelorAccountingCybersecurityhttps://nordicproductions.no/papers/car-co2-emissionshttps://nordicproductions.no/papers/car-co2-emissionsI looked at 7,385 cars to find out what best predicts a car's CO2 emissions. The answer turned out to be simple, but a pattern hiding in my very first chart took me a while to understand.Tue, 29 Sep 2026 00:00:00 GMTData ScienceBachelorMachine learningCarshttps://nordicproductions.no/papers/coca-cola-valuationhttps://nordicproductions.no/papers/coca-cola-valuationOne semester, three students, six Excel workbooks and a lot of VBA. We built the tools of financial modelling one by one, then used them to value Coca-Cola. Our models said $20 to $36 a share. The market said $72.Tue, 29 Sep 2026 00:00:00 GMTFinanceBachelorFinanceExcelValuationhttps://nordicproductions.no/papers/customer-profitabilityhttps://nordicproductions.no/papers/customer-profitabilityA company can make a healthy profit while almost four in ten of its customers lose it money. I built a made-up medical supplier to show how it happens, and the culprit turned out to be a box of gloves.Tue, 29 Sep 2026 00:00:00 GMTBusinessBachelorAccountingCustomershttps://nordicproductions.no/papers/firi-crypto-exchangehttps://nordicproductions.no/papers/firi-crypto-exchangeIn 2017, most Norwegians saw crypto as risky and confusing, and banks didn't want to touch it. A look at how Firi grew to over 240,000 users anyway, how it makes money, and what could go wrong.Tue, 29 Sep 2026 00:00:00 GMTFintechBachelorFintechCryptohttps://nordicproductions.no/papers/you-are-a-cash-flowhttps://nordicproductions.no/papers/you-are-a-cash-flowFinance values everything as the money it will produce over time. Point that lens at yourself, add Norwegian tax, and you see why business owners save through their companies, and why the tax isn't lower, only later.Tue, 29 Sep 2026 00:00:00 GMTFinanceBachelorFinanceTax