An amateur mathematician used ChatGPT to solve a combinatorial mathematics problem proposed by Hungarian mathematician Erdős in the 1960s. This marks another milestone in AI-assisted mathematical research, demonstrating that large language models' capabilities in formal reasoning are evolving from "auxiliary verification" to "substantive breakthroughs."
Hot debate: The HN community is arguing whether this counts as a victory for "human+AI" or a pure AI breakthrough, as well as the issue of the rigor of the mathematical proof.
Scientific American | HN Discussion
OpenAI Launches Privacy Filter
OpenAI released a new privacy filtering tool that allows enterprise users to automatically filter sensitive information when calling the API. This is another step in OpenAI's compliance efforts for the enterprise market, following its data retention policy.
OpenAI Official
Qwen3.6-27B Achieves 100 tps on a Single RTX 5090
Using vllm 0.19 and INT4 quantization, Qwen3.6-27B achieved 100 tokens/second with a 256k context length. Consumer-grade GPUs are approaching the performance of last year's enterprise-grade inference cards, lowering the cost barrier for local deployment yet again.
Reddit Discussion
> Spicy take: Last year we were discussing "cloud vs. local," this year it's "which consumer card offers the best bang for the buck." The speed of AI compute moving downstream is faster than anyone expected.
Crypto / Web3
CFTC Sues New York Regulator Over Coinbase and Gemini
The U.S. Commodity Futures Trading Commission has filed a lawsuit against the New York State Department of Financial Services, alleging its regulation of Coinbase and Gemini interferes with federal authority. This is the first direct conflict between U.S. federal and state regulators in the crypto space and could reshape the U.S. crypto regulatory landscape.
Finance Feeds
DeFi Community Establishes Recovery Fund After KelpDAO Exploit
Following an exploit on KelpDAO that caused rsETH to depeg, protocols including Aave, EtherFi, Ethena, and Lido jointly established a recovery fund, with KelpDAO contributing 2000 ETH. A final plan has been determined, pending a DAO vote and technical execution; 71,700+ users affected.
Hot debate: The community is discussing whether this is the "DeFi mutual aid spirit" or "large protocols forced to save themselves to prevent systemic risk."
Aave Twitter | KelpDAO Twitter
Tether Freezes $344 Million in Iranian Central Bank Wallets
The U.S. Treasury's OFAC blacklisted two crypto wallets directly associated with the Iranian central bank, and Tether complied by freezing $344 million. This is the largest single amount frozen by a stablecoin issuer enforcing sanctions, again exposing the "kill switch" risk of centralized stablecoins.
Crowdfund Insider
Brazil Bans Kalshi and Polymarket
Brazilian regulators banned prediction market platforms like Kalshi and Polymarket, citing the need to "protect investors from the risks of unlicensed gambling." Following China and India, another emerging market says no to decentralized prediction markets.
Crowdfund Insider
Litecoin Rewrites 3 Hours of History to Undo Privacy Layer Exploit
The Litecoin network experienced its first major privacy layer exploit leading to double-spending; miners coordinated to reorganize the chain and roll back 3 hours of transaction records. This is another collision between the "immutable" promise and real-world security.
The Block
> Spicy take: Tether freezing $344 million just takes a backend operation; Litecoin rolling back 3 hours requires coordination from the entire miner network. Sometimes, "decentralization" is actually more fragile.
U.S. Stocks
Trump Invokes Defense Production Act to Address Grid Equipment Bottlenecks
Trump used the Defense Production Act to accelerate grid equipment production and energy project approvals, aiming to alleviate power supply bottlenecks for data centers and AI compute. This is the first time the U.S. government has elevated AI infrastructure to a "defense-level" priority.
Reddit Discussion
$600k Intel YOLO Position Rises 250%
A WSB user shared a screenshot showing a $600,000 Intel position with a 250% gain. Intel's stock price has recently rebounded on rumors about its AI chips and foundry business, but its fundamentals haven't fundamentally improved yet.
Reddit Discussion
Tech Companies
Lei Jun Announces Xiaomi YU7 GT Launch for Late May
The performance version of the Xiaomi car, the YU7 GT, will be launched in late May, positioning itself against the Tesla Model Y Performance and the Li Auto L6. This is Xiaomi's first performance model since entering the new energy vehicle赛道 (track/arena).
Zhihu Discussion
Trump Fires Entire National Science Board
The Trump administration fired all members of the U.S. National Science Board (NSB). The NSB provides policy advice to the National Science Foundation, and this move has raised concerns in academia about funding for basic research and its independence.
The Verge
> Spicy take: Silicon Valley is scrambling for H100s while watching the White House clear out its science advisory board. The AI boom and a basic research winter are happening simultaneously in the U.S. in 2026.
New Products / New Trends
iPhone Automatically Installs Mysterious App Daily
An HN user reported that their iPhone silently installs the same app every day, and it reappears no matter how many times it's deleted. Apple has not yet responded; suspicion points to MDM (Mobile Device Management) or an enterprise configuration profile.
HN Discussion
Finance / Macro
A-Shares See Second-Longest "Grouping" Since 2007
A CITIC Securities research report points out that the current duration of institutional "grouping" in A-shares is the second longest since 2007, suggesting the next allocation direction should be "neither hot nor contrarian." Core asset valuations are already at historical highs, and signals for a style rotation are strengthening.
Wall Street News
Today's Undercurrent
While ChatGPT helps an amateur mathematician crack an Erdős problem, Trump fires the entire National Science Board; Tether freezing $344 million in Iranian wallets proves the stablecoin "kill switch" is real, yet Litecoin relies on full-network coordination to roll back 3 hours to fix a vulnerability. The tech world in 2026 is playing out two parallel narratives: AI gives individuals unprecedented capabilities, but macro power structures (whether governmental or centralized protocols) are becoming more explicit and direct. "Decentralization" is not a technical problem; it's a political economy problem.
