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AWS S3: 1 PB/s on slow HDDs

https://sudonull.com/aws-s3-1-pb-s-on-slow-hdds

Let's break down how S3 achieves petabyte speeds on HDD with EC 5/9, parallelism and LSM. Technical details for developers: latencies, IOPS, sharding. Study the architecture.

Tao's Cosmic Distance Ladder

https://sudonull.com/tao-s-cosmic-distance-ladder

Learn how Eratosthenes measured the Earth, Aristotle proved the sphere by the Moon. Terence Tao's lectures on the geometry of cosmic scales. For mathematicians and astronomers.

Gödel's Theorem: Incompleteness of Formal Systems

https://sudonull.com/go-del-s-theorem-incompleteness-of-formal-systems

Analysis of Gödel's incompleteness theorems with numbering and PM-Lisp. Why it's impossible to formalize all mathematics. For developers and mathematicians.

From other projects

S&P 500 and Nasdaq at records despite Fed split and war

https://ymaho.com/s-p-500-and-nasdaq-at-records-despite-fed-split-and-war

S&P 500 reached 7230.12, Nasdaq — 25114.44, updating historical highs. Find out why the market ignores inflation, the split in the Fed and the crisis in the Persian Gulf, and how long this rally will last.

S&P 500 at 7500: why the record is a trap

https://ymaho.com/s-p-500-at-7500-why-the-record-is-a-trap

S&P 500 closed above 7500 points for the first time, but behind the record lies an options gamma bomb and the risk of a crash. Find out how to protect yourself before it's too late.

S&P 500 and Nasdaq records despite crisis

https://ymaho.com/s-p-500-and-nasdaq-records-despite-crisis

Analysis of the 'K-shaped' rally: why the tech sector updates highs with PPI inflation at 6% and war with Iran. Learn the growth drivers and risks of market divergence.

S&P 500 and Nasdaq fall: end of the TINA era

https://ymaho.com/s-p-500-and-nasdaq-fall-end-of-the-tina-era

US markets fall for third session: Treasury yields above 5% change the game. Find out why growth stocks are under pressure and where the market is heading. Read analysis.

S&P 500 Energy Sector: Growth or Trap?

https://ymaho.com/s-p-500-energy-sector-growth-or-trap

Analysis of oil and gas stock growth amid commodity prices. Risks, hidden factors, and forecast for XLE, Brent, and WTI. Read before buying.

S&P 500 and Nasdaq futures fall ahead of Fed minutes

https://ymaho.com/s-p-500-and-nasdaq-futures-fall-ahead-of-fed-minutes

Why the market fears a split in the FOMC, not the rate? 30 and 90 day forecast, S&P 500 levels and 10-year yields. Read the analysis before the minutes release.

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