🤖 Show HN: Mysti – Claude, Codex, and Gemini Debate Your Code, Then Synthesize
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💵 U.S. Dollar’s Global Reserve Share Falls to Lowest Level Since 1994
The weakening dominance of the dollar signals a shift toward a more multipolar financial world where regional currencies gain influence despite the absence of a clear successor.
The U.S. dollar’s portion of global foreign exchange reserves fell to 56.9% in Q3 2025 — the lowest since 1994. While central banks still hold large USD reserves, they are increasingly diversifying into smaller and non-traditional currencies. The euro remains steady around 20%, and the renminbi’s share has declined. This shift could affect America’s ability to cheaply finance its trade and budget deficits.
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⏱️ Clock Synchronization Is a Nightmare
A deeply insightful technical read for distributed systems engineers — blending computer science theory with hands-on reliability challenges in timekeeping.
Arpit Bhayani breaks down the challenges of keeping distributed systems in time sync, from clock skew and drift to synchronization algorithms like Cristian’s and Berkeley’s. The post reviews NTP, PTP, and Google’s TrueTime, and explores logical and hybrid clocks along with quirks like leap seconds and anomalies that disrupt consistency.
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💰 Nvidia Just Paid $20B for a Company That Missed Its Revenue Target by 75%
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⚡ Fastverse: High-Performance, Low-Dependency R Package Suite
An impressive example of performance-focused R engineering, bridging the speed of data.table with the usability of tidyverse.
Fastverse is a modular ecosystem of R packages built for high-performance statistical computing and efficient data manipulation with minimal dependencies. It offers tools for fast matrix operations, multithreaded computations, and optimized data structures — many written in C++ for speed and efficiency.
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