This document discusses the invention of mechanical working tools in the 21st century and how they have improved accuracy in building, extracting, traveling, and learning. These tools have increased standards of living through greater economic income by enabling better road services, skyscrapers, transportation systems, and faster learning via the internet. Mechanical systems allow people to focus on invention, perfect production, economic growth, easy access to services, and a better life with less risk compared to past tools that relied more on human labor and animals.