How to Sell a PDF Privately with ⚡

You’re at a garage sale and see a wonderful recipe book. “How much? $5? Sweet!”. The seller gives you a form where you fill out your home address, date of birth, a list of websites you recently visited, and several written testimonies from companies you purchased from before, to confirm you would never use stolen… Continue reading How to Sell a PDF Privately with ⚡

How to deal with Corona

I spent an inordinate amount of time this year subtweeting articles, commenting on policy and discussing corona with folks on Twitter. Because I read studies and listened to weeks worth of podcast content on the topic in three languages (e.g. Das Coronavirus Update and This Week in Virology) I’d like to believe I have at… Continue reading How to deal with Corona

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Categorized as Pandemic

Mask math for fun

I wanted to get an order of magnitude sense of the utility of non-medical masks. Specifically their usefulness against floating droplets at a reasonable distance, and not from someone coughing loudly; those people can easily be avoided. In addition I focus on short term exposure. In other words, should I worry when waiting in an… Continue reading Mask math for fun

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Categorized as Pandemic

Cargo Cult veldexperiment

Cargo Cult veldexperiment NRC schreef onlangs in hun redactioneel commentaar: Interessanter is de benadering die de Nederlandse denktank Sustainable Finance Lab (SFL) deze maand suggereerde. Nederland is volgens het SFL bij uitstek een geschikt land om te experimenteren met een door de centrale bank gecontroleerde digitale munt, omdat het gebruik van cash in ons land… Continue reading Cargo Cult veldexperiment

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Categorized as Bitcoin

Privacy, proportionaliteit en subsidiariteit

Privacy, proportionaliteit en subsidiariteit Onderstaande is een fragment uit de brief die ik in januari 2019 gestuurd heb naar Minister Hoekstra (Financiën) via de internet consultatie Implementatiewet Wijziging Vierde Anti-Witwasrichtlijn. De gehele brief is hier te lezen. De voorgestelde wet is nog steeds in behandeling. Uit recente voorstellen zoals het delen van identiteitsgegevens van cryptocurrency… Continue reading Privacy, proportionaliteit en subsidiariteit

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Categorized as Bitcoin

A Crime on Testnet

This post is featured in my book Bitcoin – A Work in Progress. On a warm summer day I crave a frappuccino. Unfortunately drugs such as caffeine, sugar and cacao were declared illegal decades ago. This happened because young unemployed college graduates often felt triggered by loud caffeinated rich people. Sugar was causing mass obesity… Continue reading A Crime on Testnet

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