Top Stories#
1. Supreme Court Rules Trump's Tariffs Unconstitutional The biggest story of the week: the Supreme Court struck down Trump's "reciprocal" tariff regime as unconstitutional, reasserting judicial power to check executive overreach on trade policy. Trump responded defiantly, announcing he'd raise the baseline global tariff rate from 10% to 15%. Markets are digesting what this legal-economic tug-of-war means going forward — sector-specific tariffs on steel, aluminum, and autos remain in place, but the broad reciprocal framework is dead.
2. US GDP Slumps to 1.4% in Q4, Far Below Expectations The US economy grew at just a 1.4% annualized rate in Q4 2025, badly missing the 2.5% consensus estimate. The culprit: a sharp drop in government spending during the federal shutdown. Core PCE inflation held firm at 3%, creating an uncomfortable stagflationary signal. The trade deficit for 2025 totaled $901 billion — essentially unchanged despite all the tariff drama.
3. Iran Protests Erupt Again as Students Return to Universities Iranian students staged the first large-scale anti-government protests since the deadly crackdown last month, honoring thousands killed. Meanwhile, Iran's rial continues to collapse, mirroring Lebanon's currency crisis and driving citizens toward bitcoin as a store of value.
4. China Rides the AI Wave While the West Panics A fascinating divergence: US markets are gripped by an "AI scare trade" — investors dumping software firms and wealth managers on fears AI will erode their business models. Meanwhile, Chinese investors are piling into AI winners. The equal-weighted S&P 500 is finally outperforming the cap-weighted index as the Magnificent Seven trade unwinds.
5. Netflix-Warner $72B Merger Under DOJ Scrutiny The Justice Department is probing whether Netflix wields anticompetitive leverage over filmmakers as part of its review of the proposed $72 billion Warner Bros. Discovery acquisition. This would be the largest media deal in history if approved.
Markets & Finance#
- US GDP came in at just 1.4% for Q4 — stagflation vibes with inflation stuck at 3%
- US trade deficit hit $901B in 2025, unchanged despite tariffs — the policy failed its stated goal
- Equal-weighted S&P 500 outperforming cap-weighted as mega-cap AI trade reverses
- US Treasuries' haven status eroding — FT argues Trump has "come close to exploding one of the great myths of the investment world"
- Riskiest CLO funds flashing warning signs as fear of rising defaults spreads from leveraged loans to retail credit funds
- Germany awaits key economic data next week to determine if its recovery is real or illusory
- Honeywell considering walking away from Johnson Matthey Catalyst Technologies acquisition
- Crypto markets have retraced almost all 2024-2025 US election pump gains; "bitcoin to zero" searches spiking but K33 Research sees echoes of the late-2022 bear market bottom
Tech & Innovation#
- Llama 3.1 70B on a single RTX 3090 — a Show HN project bypasses the CPU entirely, loading the model via NVMe-to-GPU direct transfer (76 pts)
- zclaw — a personal AI assistant running on an ESP32 microcontroller in under 888KB (83 pts)
- CXMT (Chinese memory maker) offering DDR4 chips at half the market rate, sending shockwaves through Korean semiconductor firms (146 pts on HN)
- Vitalik Buterin proposes AI "stewards" to help reinvent DAO governance
- Japan's SBI issuing a 10 billion yen onchain bond with XRP rewards for retail investors
- "Parse, Don't Validate" in Rust trending on HN (115 pts) — type-driven design gains mindshare
- NASA delays Artemis moon mission due to rocket issues
Geopolitics#
- Trump tariff showdown with SCOTUS — the constitutional clash over trade authority is the defining domestic political story
- Cuban security forces exiting Venezuela as US pressure mounts; 1,500+ amnesty requests filed under new law
- ISIS claims attacks on Syrian army, announces "new phase" of operations
- Slovakia threatens to cut electricity to Ukraine over Russian oil pipeline dispute
- Huckabee draws firestorm from Egypt, Jordan, Saudi Arabia for Israel border remarks
- French far-left in crisis after killing of nationalist student; elections looming
- Palestinian Authority warned to be near collapse as Israel deepens West Bank control
Quick Hits#
- Toyota Mirai loses 65% of its value in one year — hydrogen cars remain a tough sell
- Bouba-kiki effect confirmed in baby chicks — the sound-shape association isn't just human
- EDuke32 — Duke Nukem 3D gets a polished open-source engine revival
- "How far back can you understand English?" trending huge on HN (337 pts)
- Man City 2-1 Newcastle — O'Reilly double cuts Arsenal's lead to 2 points
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