Amazon, ex-search/recommendation/ML at @mercari_jp. Former NumPy/Scipy core contributor. Occasional musings on economics/music/Japanese culture
Tokyo, Japan
Joined June 2010
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Scipy Japan 2019 schedule is on: talks about chainer, tensorflow, RAPIDS and more: scipyjapan2019.scipy.org/sch… all the talks will be available in both english and Japanese through translation
David Cournapeau retweeted
Who would win? Adverse selection vs ineffective attempts to avoid adverse selection?
This is such a bleak story about what it's like to try to land a job right now. nytimes.com/interactive/2026…
David Cournapeau retweeted
One of the most uncomfortable insights from @tylercowen's interview with @chronicle: AI is exposing how much of what we teach, test, and reward is becoming obsolete.
The big threat to universities isn't going to be AI; it'll be our stubborn insistence on doing things the way we've always done them.
Tyler Cowen’s Radical AI University chronicle.com/article/tyler-…
David Cournapeau retweeted
The most famous person I've ever spoken to? I sat next to Richard Feynman on a plane once, and we chatted. In fact, more than once. And I had dinner with him several thousand times. And I spent a few months inside his wife's womb.
David Cournapeau retweeted
Cryptocurrency was invented by anarcho-capitalists to undermine government authority, and all it's ever done is prop up the North Korean regime at the expense of western hospitals.
David Cournapeau retweeted
Ça n'a absolument aucun sens. Le PS se ridiculise. D'autant qu'il reprend là une idée déjà tentée par le RN. Le populisme fiscal à l'état pur. Espérons que ça saute rapidement.
David Cournapeau retweeted
You have no idea what you are talking about.
What you said about Facebook and Insta and other social networks are not targeted because they are free, means you don’t understand the basics of economy. You don’t understand the difference between Revenue and Profit. Nor what is a non-profit.
You don’t understand anything about digital economy and digital business models.
You don’t understand anything about security and updates.
You should be ashamed of yourself.
You’re talking nonsense; the tax is capped, and in your case, it wouldn’t apply at all. Read the text of the amendment instead of just jumping into the fray along with the rest of the pack.
Readers added context they thought people might want to know
L'amendement crée une taxe de 0,055 € par Go émise par les fournisseurs de contenu, plafonnée au max à 15 % du CA France ou 2 % du CA total de l'émetteur, sans exemption pour VideoLAN ou les associations (flux mesurés par FAI si identifiés).
politique.pappers.fr/amendement/n00…
scan.contexte.com/bill-1319/step…
David Cournapeau retweeted
La réalité dépasse la fiction
#PJL2027 Adopté par l'Assemblée nationale : la "taxe assise sur les flux de données numériques émises par les fournisseurs de contenu et acquittée par ces derniers"
Selon les députés PS, "au taux de 0,055 € par giga, un rendement de 10Md€ est attendu".
assemblee-nationale.fr/dyn/1…
David Cournapeau retweeted
airlines are redistributing from price-insensitive large companies, and people are complaining?
David Cournapeau retweeted
Turns out Polymarket probably not the financial industry’s largest operational loss today.
I (regretfully) speculate this is not primarily because crypto is uniquely incompetent at software and simply because they’re the lowest hanging fruit to successfully monetize.
BREAKING: World's largest crypto exchange Binance hacked with over $5.6 billion stolen:
• $1.45 billion $BTC
• $875 million $ETH
• $234 million $TRX
• $50 million $XAUT
• $1.57 billion $USDT
• $823 million $USDC
• $75 million $WBETH
• $88.5 million $RLUSD
+ $447.5 million additional cryptocurrencies
This is the largest hack in crypto history.
David Cournapeau retweeted
(fwiw I actually think that "modernize defunct legacy code" is a good use case for AI coding, but "a 2-person team with unlimited tokens" is an incredibly stupid way of going about it at a place like Cisco)
David Cournapeau retweeted
There is just no good way to bring that news. The old times are not coming back. I don't envy anyone though who has a workforce who is not on board with the changing times. xitter.gq/steipete/status/211612…
David Cournapeau retweeted
This.
“How do capability improvements transform the economy, and when?” 👇
I joined @GoogleDeepMind to develop a research program on the economics of AGI. Today, together with Andrew Koh (@andrewjkoh) and Shane Legg (@ShaneLegg), we are incredibly excited to release The Economics of Intelligence, the first in a series of projects from our group on how AGI will change the economy.
How do capability improvements transform the economy, and when? In this project, we define thresholds of economic capabilities, e.g., minimal AGI, based on how they transform the economy. We then track how the economy–market structure, employment, and wages–changes during the transition across capability regimes.
We have seen exponential increases in what AI agents can do but the broader economy seems almost remarkably unchanged. Part of the reason is that the solo AI agent is the wrong economic object; economic transformation is an equilibrium outcome where organizations compete. Looking at how intelligence functions within organizations, transformation will depend on when two key capability thresholds are crossed: competence (gains on individual skills, e.g., coding, math) and coordination (gains on ability of agents to cooperate and work together).
We show that what economic transformation looks like depends on whether AI becomes supercompetent, supercooperative, or both—the regime of artificial superintelligence (ASI). Tracking this transition shows why the real visible transformation may come from improvements in coordination—a capability most benchmarks don’t yet track. Past a certain threshold, AI capabilities can break the Coasian ceiling on firm size and lead to an economy that looks drastically different than the one we see today.
Two main takeaways:
1. To understand the path of transformation, we should be tracking agentic coordination more closely.
2. The impact of AI will likely show up in wages before market structure or employment.
We are really excited about this paper. Excited to hear people’s thoughts.
Link: institute.deepmind.com/essay…
David Cournapeau retweeted
D’abord face à nos partenaires européens, ce qui ne serait déjà pas si mal et supposerait que nos entreprises soient soumises à des charges comparables aux leurs.
Être compétitif oui. Mais comment, jusqu’où et avec qui ?
Avec l’Allemagne et les USA ?
Avec la Chine ?
Avec le Bengladesh ?
En baissant toujours davantage le coût des salaires et des impôts ?
Ou en augmentant la qualité ?
La compétitivité ce n’est pas une politique. C’est un résultat. La politique et la stratégie pour la mettre en œuvre c’est ce qu’il nous faut définir collectivement.
David Cournapeau retweeted
It's more likely that Christine Lagarde's decision to leave the ECB in February looks like a calculated step to give Macron and the other current European leaders a free hand in choosing her successor - names such as Klaas Knot and Pablo Hernández de Cos keep coming up - well before the French election in April.
With the Rassemblement National leading in the polls and far cooler toward deeper European integration and the independence of the central bank, the early exit sharply reduces the chance that a new president in Paris could shape the outcome. Still, it also leaves room for the persistent rumour that she may be heading next to the World Economic Forum.
