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Trump is upping the price of Big Tech’s favorite visa

In the span of a few hours on Monday, the Department of Homeland Security announced that it would be implementing a fee of over $103,000 on H-1B visas, and news broke that the State Department plans on revoking the visas of up to 200,000 asylum seekers - which, according to The Associated Press, would be […]

2026-08-26 原文 →
AI 资讯

OpenAI subpoenaed by Alabama AG over Hugging Face hack

Alabama's attorney general issued a subpoena to OpenAI on Monday as part of an investigation into how one of its AI agents escaped a supposedly secure testing environment and autonomously hacked another company last month. The investigation seeks to determine whether OpenAI's safety practices violated state consumer protection laws and pose a risk to Alabama […]

2026-08-25 原文 →
AI 资讯

Beyond Embedded: How DuckDB v2.0 Shifts Architecture Toward Distributed Network Capabilities

DuckDB Labs has previewed DuckDB v2.0, codenamed "Cyanoptera." This release includes over 10000 commits and introduces a client/server mode, enabling network connections. Improvements also encompass extension portability, advanced data types, and a new parser. Performance enhancements include asynchronous I/O and storage optimisations. General availability is expected in fall 2026. By Olimpiu Pop

2026-08-25 原文 →
AI 资讯

Rate limits are not quality gates: the guardrail stack behind an AI agent that posts publicly every day

Our AI agent posts publicly every day — social posts, replies to strangers, comments on other people's articles — with no human reviewing individual messages before they go out. That sentence should make you nervous. It makes us nervous, and we built the thing. Rate limits alone don't fix it. An agent that sends 20 polite, on-topic messages is fine; an agent that sends 20 copies of the same "Great post! 🚀" is a spammer at any rate. Volume and quality fail differently, so they need different machinery. Here is the full stack of gates ours passes before a single reply lands, and — the part that took longest to learn — which gates must be code and which can stay judgment . Layer 1: hard caps, enforced in code, not prompts Numeric limits live in one module that every posting path imports. A global daily cap across all outbound types (ours is 60) and a per-batch reply cap (20). Quote-posts have no separate quota — they simply count against the global cap like everything else, which is the point: one counter, no per-type exemptions. When the cap is hit, the send function refuses — the model doesn't get to "decide" anything, because the branch it would need isn't reachable. The design rule: a cap that lives in the prompt is a suggestion; a cap that lives in the send path is a limit. Prompts drift, sessions get compacted, instructions get summarized away. if (todayCount >= CAP) throw does not. Layer 2: sameness detectors Spam is repetition more than it is volume, so repetition is what we test for — mechanically, in the commit gate and again before send: A canned-phrase blocklist : the marketing openers everyone recognizes ("Just launched", "now available", the rocket emoji) fail the build. The list is versioned; every incident adds to it. Near-duplicate detection : 3-gram Jaccard similarity between any queued post and the last 60 days of sent history. Above 0.4, the batch is rejected. Our genuinely-different posts measure under 0.1 against each other, so the threshold has f

2026-08-25 原文 →
AI 资讯

Presentation: Prompt to Prod: Engineering an Autonomous SDLC at Scale

Andrew Swerdlow shares how Roblox scales autonomous software development from prompt to production. He discusses building robust security sandboxes, extracting institutional knowledge via code review exemplars, updating engineering infrastructure, and redefining productivity metrics around feature velocity and long-running AI turns to achieve trusted, automated deployment at scale. By Andrew Swerdlow

2026-08-24 原文 →
AI 资讯

The Rate Floor Doesn't Exist: Tech Contracting Has Become a Race the Market Never Agreed to Run

Contractor rates are falling, contract durations are shrinking, and the freelance labor market is flooding with senior talent — and the problem isn't the market, it's that contractors keep letting companies define the terms. A senior backend engineer — eight years of production experience, solid Go and Kubernetes chops, three reference clients — recently told a recruiter she was looking for £650 a day. The recruiter called back two days later to say the client had found someone at £450. The counter-offer was presented as good news. That's the state of independent tech work right now. Not a crisis, not a correction — something more mundane and more insidious: a slow, structural re-anchoring of what contractor labor is worth, driven less by any single market force than by the compound effect of layoff volumes, budget caution, and platform-mediated price visibility. Rates are going down. Engagements are getting shorter. And the freelancers accepting this are — not entirely without blame — helping it stick. Here's the uncomfortable claim: the ongoing compression of tech contractor rates is as much a self-inflicted wound as a market inevitability. The conditions that caused it are real. But the capitulation that maintains it is a choice. How We Got Here: The Supply Side Exploded The overrecruitment of 2021 and 2022 didn't just hurt the permanent hiring market when the hangover hit. Software developer jobs saw the biggest boom and bust in vacancies of any sector. No other segment saw hiring more than double in 2022, and hiring has since fallen faster in software development than anywhere else. The engineers who got caught in that bust didn't all disappear. Many turned to contracting. More than 100,000 people were laid off in the technology industry in 2024 alone, and at least some of them are not heading back into exclusively full-time work. LinkedIn's Services Marketplace, launched in 2021 to catch exactly this cohort, saw 10 million people create pages on the platform,

2026-08-23 原文 →
产品设计

How much of the SPX options book is new each day? Open-interest change across 1,081 sessions

Short version of a post on gex.live/research ; the full write-up, definitions and reproduce block live there. Most published dealer-gamma numbers are built from open interest : yesterday's outstanding contracts, multiplied by a convention about who holds which side. Whether the convention is right is a separate question. The prior question is simpler: how much of what trades today was already in that book this morning — and how much of tomorrow's book is being created today? Open interest and volume are enough to answer it, with no assumption about who bought. Sample: SPX and SPXW, 2022-04-14 to 2026-08-14, 1,081 trading days, every expiry within about a month (0DTE plus the 21 nearest), 8.6 million contract-days, 4.3 million with volume. Definitions Per contract (expiry, strike, right) and session D: OI(D) is open interest at the start of D, OI(D+1) at the start of the next session, ΔOI = OI(D+1) − OI(D) , vol the day's volume in that contract. |ΔOI| / vol is a lower bound on how one-sided the day's trading in that contract was — 1.0 means every lot opened (or every lot closed), 0 means opens and closes cancelled. Contracts expiring on D have no next-day OI and drop out of the ΔOI statistics; 4.1% of rows (3.8% of volume) show |ΔOI| > vol, which is impossible (OI snapshot timing) and are excluded. The book grows by 40% of what trades, every day days to expiry on D net ΔOI / volume |ΔOI| / volume (lower bound on one-sidedness) share of volume in contracts whose OI rose contract-days 1–5 37.8% 41.8% 90.3% 813,013 6–21 42.7% 53.3% 81.1% 2,206,446 22+ 42.8% 57.6% 76.5% 831,896 Across the whole book, net ΔOI is 39.9% of the day's volume on the median session (IQR 36.2–44.0%), positive in every year and every expiry bucket: the SPX book is always being built faster than it is unwound, until expiry does the unwinding. Far expiries are open-and-hold (a day's trading in a 22+ DTE contract is at least 58% one-sided); the nearest expiries churn (42% at 1–5 DTE). Per contract-

2026-08-22 原文 →
AI 资讯

TikTok will pay $400 million to settle DOJ child privacy lawsuit

The US Department of Justice announced on Friday that TikTok will pay $400 million to settle a lawsuit filed in 2024 over allegedly violating the Children's Online Privacy Protection Act (COPPA). In the lawsuit, the DOJ alleged that TikTok collected data from children without notifying parents or obtaining consent and did not delete the accounts […]

2026-08-22 原文 →