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Year 2029: How Google’s Quantum Warning (Q-Day) Came True, Triggering a Confidence Crisis and Costing One Bank Millions in just two weeks!
A fictional 2029, a real Q-Day. Not a single account hacked. Not one key cracked. Sinasia Financial Group was asked a question it could not answer. The suspension cost millions. The memo had warned them three years earlier. The board deferred. Q-Day is not a technical event. It is a trust event. With thanks to Marin Ivezic, whose framing reshaped how I see this threat.
From Cryptos to Quantum: The Great Financial Convergence
Seventeen years after the first Bitcoin block, the conversation is no longer centralised versus decentralised. It is how they converge. DeFi, stablecoins, tokenised real-world assets, CBDCs, instant payment rails, AI, and quantum are not separate stories. They are one architecture taking shape. A practitioner's view on how this evolved since 2009, and what it means for leaders today.
NFT risks related to marketplaces with centralised storage and lack of institutional custody
The blockchain immortalises the hash and metadata. But the actual NFT lives on a centralised marketplace's servers. If the marketplace disappears, what remains is an orphan: a record on the chain pointing to an asset that no longer exists in the real world. After Axie, Terra Luna, Polygon, and Three Arrows, the possibility of marketplace failure is not far-fetched. So why is decentralised storage still not the norm?