Multinational companies (MNCs) like Google, Amazon, Netflix, and Microsoft focus less on syntax trivia and more on scalability, system design, and deep internal knowledge of the runtime. This guide covers the most high-impact topics. Part 1: Core JavaScript Deep Dives Focus: How the language actually works under the hood. 1. Explain the Event Loop in detail. How do microtasks differ from macrotasks? Answer: The Event Loop is the mechanism that allows Node.js to perform non-blocking I/O operations despite being single-threaded. It offloads operations to the system kernel whenever possible. Call Stack: Executes synchronous code. Macrotasks (Task Queue): setTimeout , setInterval , setImmediate , I/O callbacks. Microtasks (Microtask Queue): Promise callbacks ( .then / .catch ), process.nextTick . Critical Distinction: The Event Loop checks the Microtask Queue after every completed task in the Call Stack and before moving to the next Macrotask. This means process.nextTick and Prom...

1. Introduction: The Dawn of Neuro-Capitalism For centuries, legal theory has operated on a biological constant: the definition of "personhood" effectively ended at the skin. The human skull served as an impenetrable fortress of privacy; thoughts were free because they were fundamentally inaccessible. Within this biological sanctuary, the "inner self" was sovereign, visible only through voluntary speech or action. Today, that fortress has been breached. Brain-Computer Interfaces (BCIs) technologies that translate neuronal activity into digital commands are dismantling the barrier between mind and machine. We are moving rapidly from the era of therapeutic applications, where implants restore communication for paralyzed patients, to a new age of consumer augmentation. Companies like Neuralink, Synchron, and Blackrock Neurotech are effectively merging biological intelligence with silicon, aiming not just to heal, but to enhance memory, processing speed, and device cont...