Quantum computing is exploding, with 2025 declared the Year of Quantum Science and Technology by the UN, highlighting major advances in solving complex problems in optimization, finance, health (molecular simulation), chemistry and AI, thanks to qubits and their superposition, although the technology is still unstable and requires millions of qubits for complex applications. Players like Quandela in France are developing infrastructures, but the stakes are high: it is necessary to stabilize hardware, develop algorithms (such as Shor's algorithm) and above all, prepare quantum security for the future, because it could break current ciphers. Topical topics to address: The International Year 2025: Highlighting 100 years of quantum mechanics and the importance of this year for global research and investment. Promises: Finance: Portfolio Optimization, Fraud Detection, High Frequency Trading. Health/Pharma: Molecular simulation to create new drugs, personalisation of treatments. AI & Big Data: Big data analytics, improved machine learning. Automotive: Route optimization, battery design. Current challenges: Hardware: Stability of systems, need for millions of qubits, multiplicity of technologies (photons, trapped ions, etc.). Error corrections: The imperfect nature of quantum material requires complex corrections. The security paradox: Future quantum computers (with Shor's algorithm) could break current ciphers (RSA), requiring the development of post-quantum cryptography. Stakeholders & the French ecosystem: Highlight companies such as Quandela (Europe's first quantum factory), public (France 2030) and private investments. Future perspective: This is not a PC replacement for now, but a technology for governments and large companies, creating opportunities ($850 billion in potential value) but also risks. Publish angle: Eye-catching title: "Quantum Computing: Revolution on the Move or Science Fiction?" or "2025: The Quantum Era Begins". Tone: Between a fascination with promises and realism in the face of challenges.