We do not grow old as long as we strive to improve ourselves.
A comprehensive overview of how cryptocurrency is taxed across major jurisdictions. Learn when taxable events occur, how gains are calculated, and how to handle reporting obligations for foreign exchange accounts.
A clear-eyed look at the real risks of crypto investing. Understand the causes of extreme volatility, major exchange hacks, and the mechanics of rug pulls, Ponzi schemes, and other scams — so you can invest safely.
Compare the regulatory approaches of the US, EU, and other major jurisdictions. Understand the key provisions of major investor protection laws and the OECD's CARF international tax cooperation framework.
A forward-looking view of where blockchain technology is heading. From DePIN and real-world asset tokenization to the convergence with AI and the rise of CBDCs — a comprehensive outlook to close the crypto fundamentals series.
From arrays and linked lists to stacks, queues, hash tables, and trees — understand the properties and time complexities of core data structures, and learn how to choose the right one for each situation.
Understand how an operating system manages processes, memory, and file systems. Learn the principles behind process scheduling, deadlocks, and virtual memory to grasp how computer systems truly work.
From the OSI 7-layer model to the TCP/IP stack, HTTP/HTTPS protocols, and beyond — understand step by step how the internet works. A clear summary of DNS, routing, and socket communication essentials.
Learn the core concepts of relational databases and SQL basics. Covers normalization, indexes, transaction ACID properties, and the differences between SQL and NoSQL — a complete foundation for database design.
Learn the Software Development Lifecycle (SDLC), object-oriented design principles (SOLID), and core design patterns. A comprehensive foundation covering code quality, testing, and version control — everything a working developer needs to know.
From symmetric and asymmetric encryption principles to HTTPS and certificates, SQL injection, XSS, phishing, and defense strategies — a complete guide to the security fundamentals every modern developer must know.