$ ls -la ./articles // 19 entries · sorted by date

Everything I've written, in order.

Long articles, short notes, glossary entries. Search by keywords, filter by category, or just scroll. No algorithm — just a chronological order.

19 articles published
since 2026-05-17
~126 min of reading
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date category title duration tags
// june 2026
14.06.26 macro Pay-as-you-go, funded, sovereign fund: what about our neighbours?Final episode: we leave France. United States, Netherlands, Switzerland, Norway — how others fund their pensions, what is singular about France, and why the “sovereign fund that pays the pensions” is a myth. 7 min retirementmacro 14.06.26 macro The small special schemes: Opera, Comédie-Française, Banque de France…Behind the big schemes hides a gallery of tiny ones: Opera ballet dancers retiring at 42, the Comédie-Française, the Banque de France, notaries' clerks. Minuscule in headcount, they reveal the often-forgotten logic of the 2023 reform. 5 min retirementmacro 14.06.26 macro The seafarers' scheme (ENIM): the oldest in FranceBorn in 1673 under Colbert, the seafarers' scheme is the doyen of French pensions — still open, more than 80% funded by the State, and built on a unique logic: you contribute not on your wage, but on a flat-rate scale by category. 5 min retirementmacro 14.06.26 macro The RATP pension scheme: closed — and then what?The most media-covered scheme is also the best textbook case: its rules, its State subsidy, and above all what “closing a scheme” means over fifty years — a slow wind-down, not an immediate saving. 5 min retirementmacro 14.06.26 macro The energy-sector (IEG) pension scheme (EDF, Engie, Enedis, GRDF…)Often confused with SNCF's, the electricity and gas workers' scheme differs on one decisive point: it receives no State subsidy. How it's really funded (yes, the CTA levy on your bill), and the funded layer — the PERO — sitting on top. 6 min retirementmacro 14.06.26 macro The SNCF railway pension scheme, explainedThe railway workers' scheme without the trial or the whitewash: its history, its calculation on the last six months, its retirement ages — and why the State pays roughly €3.2bn a year to balance it. 6 min retirementmacro 14.06.26 macro Pay-as-you-go pensions: how the French system works, and why “42 schemes”?The backbone of the French system, explained simply: pay-as-you-go, the mandatory tiers, the real meaning of the “42 schemes” figure, and what the 2023 reform — then its 2026 suspension — actually change. 9 min retirementmacro 07.06.26 investment The SpaceX IPO, taken apart: how to read a stock-market listingOn 12 June 2026, SpaceX lists on the Nasdaq, raising ~$74B at a valuation near $1,770B. Instead of 'should you buy?', here are the eight reflexes to read any prospectus — applied live to the SpaceX case. 10 min investipo
// may 2026
22.05.26 crypto Bitcoin Pizza Day: 16 years later, what the transaction teaches usOn May 22, 2010, Laszlo Hanyecz traded 10,000 BTC for two pizzas. The story, today's value, and the real lesson — which isn't the one you hear everywhere. 8 min bitcoinhistory 21.05.26 crypto The cryptography of BitcoinSHA-256, secp256k1, ECDSA, Schnorr, address derivation: the cryptographic block that holds Bitcoin together, explained at a useful level without drowning in formulas. 12 min bitcoincryptography 21.05.26 crypto Math prerequisites for Bitcoin (side-quest)Modular arithmetic, hash functions, elliptic curves, the law of large numbers — the 4 mathematical building blocks needed to follow the Inside the gears of Bitcoin series, explained as intuition, without heavy formulas. 10 min bitcoincryptography 20.05.26 investment Why compounding is your single best toolThe most powerful formula a retail investor has access to is also the one they most systematically underestimate. Time crushes talent — provided you let it do its job. 8 min investmanifesto 19.05.26 macro Why macro matters (even for a retail investor)We optimize 0.5% in fees and ignore 3–5% inflation that wipes ten years of effort in a single year. Macro isn't market timing — it's the tide under the boat. 6 min macromanifesto 19.05.26 method Why writing down your method changes everythingMost retail investors invest on instinct: impulse buys, fear-driven sells, no written exit criteria. A written method — even a mediocre one — beats any perfect method that stays in your head. 6 min methodmanifesto 17.05.26 crypto Bitcoin: risks, myths and possible futuresVolatility, energy, crime, regulation: an overview of common objections and real uncertainties around Bitcoin. 5 min bitcoinrisks 17.05.26 crypto How to buy Bitcoin — and more importantly, how to secure itPlatforms, wallets, seed phrase: the practical guide to buying Bitcoin without getting scammed and keeping it safe. 5 min bitcoinsecurity
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