Heisenberg Professor for Machine Learning. Tech enthusiast. Livin' the dream. Views are my own.

Joined May 2020
46 Photos and videos
TimHahn retweeted
Elon Musk habe zur Jagd auf Migranten aufgerufen, und damit guten und vor allem desinformierten Morgen mit dem ZDF

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TimHahn retweeted
Es ist mir echt egal, wieviele Millionäre, Milliardäre oder jetzt auch den Billionär es gibt. Mögen sie mit ihrem Geld glücklich werden. Nicht egal ist mir mein Geld und was damit gemacht wird. Welche absurd hohen Steuern und Sozialabgaben ich zu bezahlen habe, wie oft und unter welchem Vorwand jeder Euro besteuert wird und wie ineffizient und ungerecht das Geld eingesetzt werden. Können wir mal bitte hierüber reden. Danke.
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TimHahn retweeted
Jun 12
History's first trillionaire is a guy who catches rockets out of the sky with chopsticks and beams internet to every dead zone on the planet. Same guy ships cars that drive themselves, humanoid robots for the factory floor, brain chips that let paralyzed people move a cursor with pure thought, and an AI running on a supercomputer his team stood up in months instead of years. And the people crashing out about his net worth are doing it on the app he owns. The same app governments spent years trying to censor. You cannot legislate a rocket into orbit.
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TimHahn retweeted
Replying to @maier_ak @claudeai
Dass der AI Act weg müsste, ist klar. Aber dann gibt es auch noch die DSGVO, den DSA und das Urheberrecht, die ein ambitioniertes KI-Lab in der EU gegenüber der Konkurrenz in den USA und China ausbremsen. Vom langwierigen Genehmigungsprozess beim Bau neuer Gas-, Kohle- oder Kernkraftwerke und Rechenzentren und deren Realisierung ganz zu Schweigen. Und dann bräuchte es noch sehr, sehr viele Chips, über deren Export die USA und China entscheiden, die es in der EU überhaupt nicht gibt. Und wir haben auch keine Frontier-KI, die uns bei der Verbesserung der KI hilft. Selbst wenn die EU schlagartig 1000 Milliarden locker machen würde, sehe ich nicht die geringste Chance, diesen Rückstand aufzuholen.
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TimHahn retweeted
Meine Partei Die Grünen organisiert Busse zur Verhinderung des AfD-Parteitags. Ich schäme mich. Es gibt Momente, in denen man als Parteimitglied der @Die_Gruenen innehält und denkt: Meinen die das ernst? Mein Kölner Kreisverband meint es ernst. Per Rundmail werden Mitglieder aufgerufen, in Bussen nach Erfurt zu fahren – nicht zum Protestieren, sondern um den Bundesparteitag der #AfD zu verhindern. Tickets werden bereitgestellt. Busse werden organisiert. Die Grünen als Reiseveranstalter für den Angriff auf demokratische Grundrechte. Der Text lautet wie folgt: "Gemeinsam nach Erfurt: AfD-Bundesparteitag verhindern Aus Köln fahren mehrere Busse zum AfD-Bundesparteitag am 4. und 5. Juli, um ein Zeichen zu setzen: AfD-Bundesparteitag verhindern..." Man muss das sacken lassen. Eine Partei, die sich Hüterin der Demokratie nennt, ruft dazu auf, einer anderen Partei ihren Bundesparteitag unmöglich zu machen. Nicht verboten. Nicht vom Bundesverfassungsgericht untersagt. Legal. Verfassungsrechtlich geschützt. Einfach unerwünscht – und das reicht offenbar. Das ist keine Grauzone. Art. 21 Grundgesetz schützt die Freiheit politischer Parteien. Art. 8 schützt die Versammlungsfreiheit. Auch die der AfD-Delegierten. Wer einen Parteitag aktiv verhindert, riskiert Strafbarkeit wegen Nötigung. Und wer als Parteiorganisation dafür Busse bucht, macht sich zum Organisator dieses Rechtsbruchs. Aber das Rechtliche ist vielleicht noch das Kleinere. Das Eigentliche ist die Denkweise dahinter. Sie lautet: Wir wissen, was demokratisch ist – und deshalb dürfen wir demokratische Regeln brechen. Wir verteidigen den Rechtsstaat – und deshalb nehmen wir das Recht selbst in die Hand. Wir sind die Guten – und das legitimiert alles. Diese Logik hat einen Namen: Der Zweck heiligt die Mittel. Sie ist nicht neu. Und sie ist nicht links. Wer heute den Parteitag des politischen Gegners verhindert, hat das Argument verloren. Er hat nicht die AfD besiegt – er hat ihr das stärkste Opfernarrativ des Jahres geliefert. Frei Haus. Mit Busservice. Ich bin Grüner und ich bleibe es. Aber ich weigere mich, so zu tun, als wäre das hier normal. Es ist nicht normal. Es ist beschämend.
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TimHahn retweeted
WELT: "Der Bundesagentur für Arbeit droht Ende dieses Jahres aufgrund der Wirtschaftskrise ein neues Milliardenloch. Um das zu stopfen, könnte es für Steuerzahler teuer werden – und am Ende könnte sogar die Arbeitslosen treffen." Die Lösung wäre so einfach: Personalabbau. Die BA beschäftigt etwa 113.000 Mitarbeiter. Vermutlich ließen sich 50 % durch Prozessautomatisierungen einsparen, denn nur etwa 39.000 Mitarbeiter sind in der Arbeitsvermittlung und im Kundenservice tätigen. Die große Masse der Beschäftigten ist Bestandteil eines riesigen Verwaltungsapparates, der im KI-Zeitalter nicht mehr zeitgemäß ist.
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TimHahn retweeted
Everyone knows these timelines are incompatible with progress. Grant funding takes 2–3 years from idea to award and another 3–5 years to publish the work. Good scientists are already using whatever fungible resources they have available to pursue the most promising ideas while simultaneously playing the grant-writing game as a separate endeavor. The grant process and the science itself operate on different dimensions, with the grant process consuming sometimes over 90% of a scientists time. Any serious reform effort should start by acknowledging this reality. The goal of science funding should be to accelerate discovery, not hinder it with bureaucracy.
A reasonable average time to funding from idea to getting the money is probably 2-3 years. Executing the work is another 2-3 years if you move quickly. In the age of DeSci AI, these timelines will literally become geologic in scale. People will develop therapies on an idea while grants are still under resubmission status.
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TimHahn retweeted
May 30
Two economists just published a mathematical proof that AI will destroy the economy. Not might. Not could. Will — if nothing changes. The paper is called "The AI Layoff Trap." Published March 2, 2026. Wharton School, University of Pennsylvania. Boston University. Peer reviewed. Mathematically modeled. The conclusion is one sentence. "At the limit, firms automate their way to boundless productivity and zero demand." An economy that produces everything. And sells it to nobody. Here is how you get there. A company fires 500 workers and replaces them with AI. A competitor fires 700 to keep up. Another fires 1,000. Every company is behaving rationally. Every company is following the incentives correctly. And every company is building a trap for itself. Because the workers who were fired were also customers. When they lose their jobs faster than the economy can absorb them, they stop spending. Consumer demand falls. Companies respond by cutting costs — which means automating more workers — which means less spending — which means more falling demand — which means more automation. The loop has no natural exit. The researchers tested every proposed solution. Universal basic income. Capital income taxes. Worker equity participation. Upskilling programs. Corporate coordination agreements. Every single one failed in the model. The only intervention that worked: a Pigouvian automation tax — a per-task levy charged every time a company replaces a human with AI, forcing them to price in the demand they are destroying before they pull the trigger. No government has implemented this. No major economy is seriously discussing it. Meanwhile the numbers are already tracking the curve. 100,000 tech workers laid off in 2025. 92,000 more in the first months of 2026. Jack Dorsey fired half of Block's workforce and said publicly: "Within the next year, the majority of companies will reach the same conclusion." Nobody is doing anything wrong. Companies are following their incentives perfectly. That is exactly the problem. Rational behavior. At scale. Simultaneously. With no mechanism to stop it. Two economists built the math. The math leads to one place. Source: Falk & Tsoukalas · Wharton School Boston University ·
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TimHahn retweeted
Diese Grafik zeigt wie der gierige Staat unsere Mittelschicht zerstört hat. In den Jahren des deutschen Wirtschaftswunders bezahlten gut verdienende Arbeitnehmer einen Steuersatz von etwa 25 %. Familien konnten sich Häuser leisten. Ein Einkommen genügte. Das Fundament für eine stabile Gesellschaft wurde gelegt. Der Spitzensteuersatz in Höhe von 53 % griff inflationsbereinigt erst ab 1.072.000 €. Heute kennt das Steuersystem keine Mittelschicht mehr. Wenn Du eine guten Job hast, kommt sofort der Staat und verlangt 42 %. Vermögensaufbau wird unmöglich. Das eigene Haus wird zum fernen Traum. Linke Politik hat ein Steuersystem erschaffen, das die Bürger knechtet. Es ist hochgradig ungerecht.
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TimHahn retweeted
The difference is staggering. GPU capacity is THE new industrial capacity. Germany, traditionally continental Europe's preeminent economic and industrial power, is in particular shockingly far behind. Meanwhile the GPU capacity buildup in the US is not slowing down. Within the next few years will reach the point where we have more GPUs than people.
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TimHahn retweeted
Replying to @shreyansj
It’s refreshing to see a company of this size successfully call bs on the whole thing to this extent. One group of MTS on a mission, clean.
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TimHahn retweeted
Die taz sinniert über eine Art Trabbi-KI für Europa
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TimHahn retweeted
WELT: - Der Spitzensteuersatz traf zuletzt Steuerpflichtige schon beim 1,3-Fachen des durchschnittlichen Bruttogehalts aller Arbeitnehmer. 1965 lag der Wert noch beim 15-Fachen, 1980 beim Fünffachen, 1990 beim 3,2-Fachen. Ein Steuersatz, der sprachlich nach Reichtum klingt, trifft heute breite Teile der leistungsorientierten Mitte. - Wenig hilfreich sind Sätze wie „Auch Spitzenverdiener müssen ihren Beitrag leisten“. Er suggeriert, dass dies bisher nicht der Fall ist. Das Bundesfinanzministerium weist aus, dass die oberen zehn Prozent der Lohn- und Einkommensteuerpflichtigen 2026 bereits rund 57 Prozent des gesamten Lohn- und Einkommensteueraufkommens zahlen.
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That! It could be simple, but the incentive structure is broken.
The idea that universities and hospitals are uniquely equipped to absorb massive amounts of money is one of the great scams of the modern biomedical era. Fully equipped lab space can be leased for $35/sq ft. Scientists can be hired directly at salaries 50% higher than academia with no problem attracting talent. People no longer need a university brand on their CV to do important work. What universities uniquely provide now is bureaucracy, branding, administrative empire building, and prestige signaling tied to legacy institutional names. Give a stagnant university medical center another $100M and most of it disappears into bureaucracy and wealth extraction with very little relationship to scientific output. Give $100M to a truly creative scientist and they could build an entirely new research institution capable of outperforming a billion-dollar academic system.
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TimHahn retweeted
The idea that universities and hospitals are uniquely equipped to absorb massive amounts of money is one of the great scams of the modern biomedical era. Fully equipped lab space can be leased for $35/sq ft. Scientists can be hired directly at salaries 50% higher than academia with no problem attracting talent. People no longer need a university brand on their CV to do important work. What universities uniquely provide now is bureaucracy, branding, administrative empire building, and prestige signaling tied to legacy institutional names. Give a stagnant university medical center another $100M and most of it disappears into bureaucracy and wealth extraction with very little relationship to scientific output. Give $100M to a truly creative scientist and they could build an entirely new research institution capable of outperforming a billion-dollar academic system.
This is an excellent and motivating read. Three big things I’ve learned since I left academia and moved to the grant-making side (@Arnold_Ventures) 3 years ago: 1. Giving money away fast, to high-ROI endeavors, is really challenging. I enjoy this challenge, but it was a shock to realize that the vast majority of effective nonprofits simply cannot absorb large amounts of cash quickly. This is why so many big donations go to hospitals, museums, and universities - they’re the only ones who can make good use of $100M checks. A lot of this work is in helping to scale highly-effective small orgs to become highly-effective medium orgs to become highly-effective large orgs. Finding high-impact ways to deploy large sums of $ is gold. 2. Risk aversion in the philanthropic/nonprofit/policy spaces is very real and a huge constraint on progress. We need to be throwing a lot more crazy ideas at the wall to see what sticks. Try stuff, fail fast, try again. More tech startup energy. More moonshots. Less ego. 3. In the public safety space especially, many traditional nonprofit & policy orgs are not super inspiring. (AV’s grantees excluded, of course!) They are driven by ideology and sunk costs rather than ROI. Working to change this - aligning policy and practice with evidence on what actually works to change lives - is the project I’ve devoted my career to. There is plenty of work to do here, and it’s been fun to see how quickly we can move the needle with this new framework. Get in touch if you want to help!
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TimHahn retweeted
Personal update: I've joined Anthropic. I think the next few years at the frontier of LLMs will be especially formative. I am very excited to join the team here and get back to R&D. I remain deeply passionate about education and plan to resume my work on it in time.
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TimHahn retweeted
Where will AI be in 1, 2 or 3 years?

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TimHahn retweeted
I'm German. Germany's ENTIRE AI data center capacity is less than 1/2 of just one site being built in Texas. We have 530 megawatts of AI data center capacity in the entire country. The US has 8.2 gigawatts. That's 15x more compute on a country with only 4x the people. Per German, the US has roughly 4x the AI infrastructure. One university computer at MIT is 4x faster than Germany's most important commercial AI facility. The obvious reaction here is "so what, German companies can just rent compute from AWS." But that's the same logic Germany applied to Russian gas for two decades. Roughly 70% of German enterprise AI today runs on American cloud providers like AWS, Microsoft, and Google. Which means it runs under American law. Every AI tool running in German hospitals, courts, ministries, banks, and factories sits on a foreign platform. Here's why this can actually become problematic. Imagine these scenarios: > The next GPU generation launches and American companies get access first because they own the data centers. German firms wait 12 months and pay 2-3x more for what's left. > A frontier AI model gets released and US export controls block it from being deployed in Germany. SAP and Siemens watch American competitors integrate it for a year before they can. > And in the worst case, a US president decides to use AI access as leverage in a trade dispute. German companies get cut off from the models their American competitors are still running. All of them are compounding problems that will negatively impact the German economy (and everyone's standard of living/jobs etc). None of this is hypothetical. > The US pulled Starlink as leverage with Ukraine in March 2025 > Chip exports to China have been throttled for three years > And the CLOUD Act lets the US demand any data stored by American cloud providers (even when the customer is a German company and the servers are physically in Germany). Germany doesn't have an answer for any of those scenarios today because the infrastructure that would make those answers possible isn't built yet. Now look at why this is actually happening on the ground. In the last 3 months Germany rejected 3 AI data center projects in a row: > Groß-Gerau, February: Vantage Data Centers, €2.5 billion, 174 MW. Voted down 18-14 by the local council > Maintal: EdgeConnex, €1 billion, 170 MW. Blocked over a backup gas generator the developer needed because grid connections in Germany take 7-10 years and a data center is built in 2 > Freyenstein, Brandenburg, April: 700 MW AI campus. Killed by protests before construction €3.5 billion in AI infrastructure turned away in one quarter. And the situation is more urgent than it looks because compute is getting harder to access, not easier. NVIDIA's Blackwell GPUs are already allocated through the second half of 2027. The American hyperscalers locked in the bulk of new production with forward orders placed in 2025. TSMC's advanced packaging lines (the actual bottleneck) are sold out through 2026. Germany has no hyperscaler of its own. That means German industry sits at the back of the queue, and the gap compounds every quarter that goes by. Where Germany is falling short right now comes down to three things: > Public backlash, because the case for what AI data centers actually do for a country has never been made to the people voting on them > Industrial electricity at €0.16-0.18 per kWh vs about $0.08 in Texas. For a 1 GW campus that's $700-900 million extra per year just for power > Grid connections taking 7-10 years for large facilities when the data center itself is built in 2. No serious operator runs on math where the wait is longer than the build And the first one is the biggest. Electricity policy and grid timelines are fixable. Public consent isn't, until someone makes the case that this infrastructure isn't nice-to-have. It's the foundation everything else runs on. The average person only feels the downside (noise, rising electricity cost, terror attack vector) We have a big messaging and marketing problem around data centers and why they are critical for everyone's future. Germany still has the foundation to win this if it moves now. Germany adopted its first national data center strategy in March 2026. 28 concrete measures, annual progress reports, doubling overall capacity and quadrupling AI capacity by 2030. The plan exists. The Industriestrompreis launched on January 1st of this year. It targets 5 cents per kWh for half of an industrial user's annual consumption. If data centers get cleanly pulled into that framework, the electricity cost gap with Texas gets significantly closer. Deutsche Telekom turned on 10,000 NVIDIA Blackwell GPUs in Munich in Q1. One facility increased Germany's available AI compute by roughly 50% overnight. And the demand is already domestic. SAP, Siemens, BMW, BASF. The German industrial anchors that benefit most from AI are German companies. The customers are at home, the infrastructure should be at home too. And this is the thing that most people forget. Germany won the second industrial revolution. By 1900 German chemical output had passed Britain's, Siemens was wiring the world, and BASF and Bayer were inventing industries that didn't exist before they built them. The companies that came out of those decisions are still the largest employers in Germany 130 years later. Germany sat out the third industrial revolution, the software one, and that was survivable because software didn't run factories. But AI runs factories. It runs hospitals, logistics, courts, and financial markets. This one is infrastructure in the same category as railways and chemical plants. The plan is written and the money is ready. The only question left is whether the country will let it get built. There's a lot of work left to do, but I'm staying optimistic.
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TimHahn retweeted
Elon Musk hat ein Vermögen von ~800 Milliarden Dollar. Würde man es ihm wegnehmen und auf alle Menschen der Welt verteilen, hätte jeder etwa 97 Dollar. Einmal schick essen gehen. Danach ist es weg. Was macht Musk stattdessen mit diesem Kapital? Er baut Raketen, die die Menschheit mehrplanetarisch machen sollen. Er elektrifiziert den Automobilmarkt. Er baut Satelliten-Internet für die entlegensten Regionen der Welt. Er finanziert KI-Forschung. Er kauft eine Plattform und stellt sie für freie Meinungsäußerung zur Verfügung. Das Geld liegt nicht auf einem Konto. Es steckt in Unternehmen, Technologie, Arbeitsplätzen, Innovation. Hunderttausende Menschen haben durch seine Visionen Arbeit. Millionen profitieren von seinen Produkten. In den Händen eines Visionärs schafft Kapital Fortschritt, Wohlstand und Mehrwert für alle. In den Händen des Staates verwässert es – und finanziert Bürokratie statt Fortschritt. Woher kommt in Deutschland dieser Reflex, Erfolg bestrafen zu wollen – statt ihn zu feiern?
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TimHahn retweeted
What happens when you post a real Monet and say it’s AI? The coolest art social experiment I’ve seen in a while. Thank you @SHL0MS
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