$ ls -la ./articles
// 22 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.
22
articles published
since 2026-05-17
~182 min of reading
since 2026-05-17
~182 min of reading
--sort
date
category
title
duration
// october 2026
31.10.26
crypto
Bitcoin mining, in detail80-byte header, nonce and extraNonce, difficulty, from CPU to ASIC, mining economics and pools: we take apart a real block mined on 31 October 2026 to understand what a miner literally does — and who decides what goes into blocks.
21 min
// august 2026
23.08.26
crypto
The anatomy of a Bitcoin transactionUTXOs, binary structure, the Script language, output families, witness and malleability: we take apart a real 222-byte Bitcoin transaction, field by field, until you can read it with the naked eye.
19 min
// july 2026
15.07.26
crypto
BIP-110: Should Bitcoin Filter Data? Anatomy of a Consensus BattleIn 2025, Bitcoin Core lifted OP_RETURN's data limit. BIP-110 was the pushback: a temporary soft-fork to re-cap arbitrary data. What it changed, how it was meant to activate — and how, on 8 August 2026, it ended in a chain split, then in a hard fork by the Knots camp.
16 min
// 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
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
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
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
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
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
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
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
// 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
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
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
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
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