Database and table sharding splits data originally concentrated in one database and one table across multiple tables and database servers, allowing them to share the storage and access load.
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Rate limiting controls the number or rate of requests admitted into a system, preventing traffic bursts from exhausting threads, connections, and database processing capacity.
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“If the price goes up, you earn USDT. If it goes down, you earn more crypto.”
It sounds as though you come out ahead whichever way the market moves. Add an advertised annualized return of several dozen percent—or more—and dual investment can look like a more productive alternative to simply holding crypto.
But there is a catch: owning more units of an asset does not necessarily mean your investment is worth more.
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When you first encounter options, four terms come up again and again:
Buy a call. Sell a call. Buy a put. Sell a put.
These are not four unrelated strategies. They are combinations of two choices:
To understand these four basic positions, start with one idea: an option gives its buyer a right to transact in the future. Trading that right is different from buying or selling the asset itself.
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You have 1,000 items, but testing every one of them is expensive. How many should you randomly inspect: 10, 100, or half the batch?
There is no universal answer based on population size alone. As the NIST/SEMATECH e-Handbook explains[1], sample-size planning depends on the statistical objective and precision requirements. The useful question is: How many items do I need to estimate a proportion with a chosen level of precision? Under common assumptions, the answer is 278—not an arbitrary percentage of the batch.
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If you’re located outside the United States and trying to subscribe to Gemini Pro, you might have encountered the frustrating “Not available in your region” message. This guide explains why this happens and how to fix it.
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This article is my understanding of the ERC-8004: Trustless Agents, which is a standard for Identity Registry, Reputation Registry and Verification Registry. And refer to the Ethereum Improvement Proposals ERC-8004: Trustless Agents[1].
...I ran into a stubborn GitHub notification blue dot that wouldn’t go away even though the Notifications page showed nothing. Here’s the quick, safe way I found to resolve it, plus a few alternatives and notes on why it happens.
...System Integrity Protection (SIP) is a security layer that limits even the root user from modifying protected parts of the system. Apple introduced it in OS X El Capitan to reduce the blast radius of malware and accidental system damage. In practice, SIP blocks writes to system locations, prevents runtime injection into protected processes, and restricts some kernel/system-level operations.
Sometimes I run a command and see ‘Operation not permitted’ despite sudo, SIP is often the reason. So I need to disable SIP temporarily.
Sometimes you encounter a large repository but only need a few directories from it. Cloning the entire repo wastes both time and disk space. Git’s sparse checkout solves this problem by letting you pull only the parts you need.
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