Willy Braun
Libido Sciendi: the desire to understand the world deeply. Deep dives on AI, finance & deeptech.

Essays

all →
Latest
Four Books, One Synthesis: Can We Power the Intelligence Revolution? Mar 2026 Energy, compute and the thermodynamic ceiling of AI scaling. · 18 min
Google AI: Mathematically Wrong, Empirically Right Jan 2026 Why Google's approach works despite breaking the rules. · 12 min
Top reads
Market Sizing for Founders A practical framework for sizing markets when you're building something new. · 10 min
On Systemic Errors: Probabilistic LLMs at Scale When your system is wrong 2% of the time but processes a billion requests. · 10 min
Surviving the Reset: A Framework for AI Competitive Advantage What separates the companies that will survive the correction. · 15 min

Journal

all →
Mar 22, 2026

Newsletter.exe #20 is out. This one started as our LP letter — we decided to make it public. Full state of tech, AI, and VC markets going into 2026, including our 91-slide LPAC deck, open-sourced for the ecosystem.

Inside: AI’s industrialisation paradox (capability 2x in 2024, compute capex past $200bn, yet deployment lags). Global VC’s bifurcated recovery ($512bn deployed, but strip out AI mega-rounds and it’s flat). French Tech’s seed choke point (only major ecosystem to decline — seed collapsed 38%). Plus three deep dives on molecular farming, first AI-designed molecule reaching Phase IIa, and the crack in the $80B+ SEO market.

Read the full newsletter →

— Newsletter.exe #20
#VC #AI #french-tech
Mar 22, 2026

The 2025 French Tech Ecosystem Report by 20VC x Overlooked is out. €2.9bn deployed into AI startups in 2025 (+50% YoY), now 43% of total French VC funding.

What stands out: France has built something unique outside the US and China — a genuine ecosystem of foundation models across modalities. Mistral (multi-modal), Genesis (robotics), Gradium (voice), Owkin/AQEMIA/Raidium (biology). The talent density is real: OpenAI, Anthropic, Cohere, Manus, and Sierra all opened Paris offices in 2024-25.

The honest take: the bull case is compelling, but no French AI company has yet achieved the $1M→$100M ARR trajectory in under 36 months that we’ve seen elsewhere in Europe.

Where I’m paying attention: application layers (Jimini, Dust, Contrast, Dialog), infrastructure and tooling (HuggingFace, Alpic, 2501, Linkup), and most of all critical industries — healthcare, defence, plant biology, materials, computing, robotics. This is where France is producing potential global AI leaders.

Reports like this one matter. Producing rigorous data and insights is how you strengthen a tech ecosystem.

Full report →

#french-tech #AI #VC #ecosystem
Mar 21, 2026

The more I read about energy transition, the more I think the real constraint on AI isn’t compute — it’s watts. We’re building cathedrals of intelligence on foundations of coal.

#energy #AI #infrastructure
Mar 20, 2026

“The purpose of a system is what it does.” — Stafford Beer. This applies to LLMs too: stop asking what they “understand,” watch what they produce.

— Stafford Beer, *Designing Freedom*
#quote #systems #AI
Mar 19, 2026

Fascinating conversation with a founder building AI agents for due diligence. The real unlock isn’t speed — it’s exhaustiveness. Humans skip pages. Agents don’t.

#founders #AI #legaltech

Library

all →
Recently read
Shop Class as Soulcraft Matthew B. Crawford #craft #philosophy ★★★★★
Apple in China Patrick McGee #geopolitics #tech ★★★★★
Six Centuries of Type and Printing Glenn Fleishman #design #history ★★★★
Every Day Is For The Thief Teju Cole #fiction ★★★★★
Things Become Other Things Craig Mod #craft #design ★★★★★
Reading list
Bullshit Jobs David Graeber #economics
The Ministry for the Future Kim Stanley Robinson #fiction #climate
The Alignment Problem Brian Christian #AI #ethics
Food for Thoughtall →
Labor Market Impacts of AI
Anthropic · 22 min report
2025 Annual Letter to Shareholders
Warren Buffett · 18 min letter
How Will OpenAI Compete?
Benedict Evans · 16 min
Navigating the Jagged Technological Frontier
Organization Science · 45 min report
Agents Over Bubbles
Stratechery · 12 min
Dylan Patel — Bottlenecks to Scaling AI Compute
Dwarkesh Podcast · 2h24 podcast
Services: The New Software
Sequoia Capital · 6 min
What to Build in 2026
Linas Beliunas · 11 min
2026 Biotech AI Report
Benchling · 30 min report