
France · public finances
Understand deficits and structural reform
Access the free State reform dossier and analyses on public spending, taxation, industry and recovery proposals.
Open the France portal →DELTA-SIERRA · DOSSIERS, BOOKS AND FIELDWORK
Documented analysis of State reform and France’s recovery, books for deeper exploration, and fieldwork on autonomy and exploration.
David Salvan · author, analyst and builder — About
FROM DOSSIER TO FIELDWORK
Self-building, household autonomy and practical feedback: fieldwork extends the analyses and books through concrete achievements.
Two chronological feeds bring together French, institutional, economic, world and geopolitical news. Headlines appear without reloading and always open the original source.

Strategic dossier for France
A sourced, quantified dossier on administrative simplification, public spending, duplication, regulation, essential services and France’s financial room for maneuver.

France · public finances
Access the free State reform dossier and analyses on public spending, taxation, industry and recovery proposals.
Open the France portal →
Mars · human settlement
Explore travel, water, oxygen, energy, habitats, health, resources and the organization of a human settlement on Mars.
Explore the Mars dossier →
Videos · lived experience
Browse editorial pages for LA RESSOURCE and Davious03 Adventures, with context, lessons and links to the videos.
Open the video library →Editorial selection
State reform, taxation, industry, artificial intelligence and resilience: five analyses connected in a reading path.


Energy sovereignty
September 13, 2026

Intelligence · society · psychology · ethics
What research says about “moral injury”


Education · employment · skills · government
Degrees, skills and results

French-only article
A French-language analysis of law, light housing, planning rules and national cohesion.

Intelligence · institutions · civil liberties
Ce que le citoyen peut savoir, ce que le droit autorise, ce que le secret protège — et où commence le risque politique.




Cybersecurity & sovereignty
Electronic invoicing, artificial intelligence, industrial espionage and economic warfare

Taxation & institutions
When one of the developed world’s highest tax burdens meets collapsing trust in public spending and algorithmic tax enforcement









































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Produire ces dossiers de plusieurs centaines de pages, ces analyses et ces infographies représente un engagement quotidien et temporel considérable. Quand on est un particulier avec une activité professionnelle à côté, et non un institutionnel ou un politique qui a ses journées entières pour cela, ce coût en temps peut devenir bloquant.
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PROSPECTIVE DOSSIER · MARS
A bilingual pathway to understand travel, landing, water, oxygen, energy, habitats, health, settler selection and the gradual transformation of a fragile base into a Martian city.