Computer science, economics, finance, sports, and practical explainers
Clear, friendly deep dives for curious readers.
Uncle TJ’s Blog turns complex ideas into practical, readable guides on technology, artificial intelligence, economics, personal finance, tutorials, and the changing world of work.
Latest articles
Fresh posts, data-driven guides, and plain-English explanations designed to help readers understand the forces shaping work, money, technology, and everyday decisions.
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Best Side Hustles for Average People in 2026: Realistic Ways to Earn Extra Income
Read more: Best Side Hustles for Average People in 2026: Realistic Ways to Earn Extra IncomeA friendly, practical guide to accessible side hustles in 2026, with data, sources, and realistic ideas for average people who want extra income without falling for hype.
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How People Really Feel About AI Today: Hope, Worry, and the Gen Z Reality Check
Read more: How People Really Feel About AI Today: Hope, Worry, and the Gen Z Reality CheckA friendly look at the outlook on AI today, especially among younger people, and why Gen Z is both using artificial intelligence and asking harder questions about jobs, school, trust, and the future.
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Labor Economics: Measuring the Unemployment Rate and Job Market Dynamics
Read more: Labor Economics: Measuring the Unemployment Rate and Job Market DynamicsA plain-English guide to labor economics, unemployment rates, labor force participation, and what job market statistics really tell us about the economy.
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Economic Forecasting and Economic Outlook: Methods and Limitations
Read more: Economic Forecasting and Economic Outlook: Methods and LimitationsLearn how economic forecasting works, why forecasts miss, and which indicators matter for reading inflation, GDP, jobs, and the economic outlook.
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US Housing Market Deep Dive (2024–2026): A Look at What’s Really Changing
Read more: US Housing Market Deep Dive (2024–2026): A Look at What’s Really ChangingA practical look at the U.S. housing market, mortgage rates, affordability, inventory, and the forces shaping buyers and sellers in 2026.
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Macroeconomic Architectures: A Comprehensive Analysis of Aggregate Activity, National Income Accounting, and Economic Indicators
Read more: Macroeconomic Architectures: A Comprehensive Analysis of Aggregate Activity, National Income Accounting, and Economic IndicatorsA comprehensive but readable guide to macroeconomics, national income accounting, GDP, inflation, employment, and the indicators used to track economic health.
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The Architecture of Insight: A Comprehensive Framework for Data Visualization, Taxonomy, and Narrative
Read more: The Architecture of Insight: A Comprehensive Framework for Data Visualization, Taxonomy, and NarrativeExplore how data visualization turns raw numbers into insight through chart design, visual perception, storytelling, and analytical clarity.
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The Hidden Price Tag: How Externalities Shape Our World
Read more: The Hidden Price Tag: How Externalities Shape Our WorldWhen you buy a cup of coffee or fill up your car with gas, the price you pay usually covers the cost of the beans or the oil, plus a little profit for the seller. But often, there are hidden costs—or benefits—that aren’t included on the receipt. These “invisible” price tags are what economists call…
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State of the Labor Market 2025: Structural Transformations, Economic Theory, and Workforce Strategy
Read more: State of the Labor Market 2025: Structural Transformations, Economic Theory, and Workforce StrategyA 2025 labor market overview covering structural shifts, workforce strategy, job trends, and the economic forces changing how people work.
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An Anatomy of Inefficiency: Why Markets Fail and the Consequences for Society
Read more: An Anatomy of Inefficiency: Why Markets Fail and the Consequences for SocietyUnderstand market failure, externalities, public goods, and why real-world economies sometimes need policy tools beyond simple supply and demand.
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The Circular Flow of Income: A Complete Guide to How the Economy Works
Read more: The Circular Flow of Income: A Complete Guide to How the Economy WorksIntroduction: Visualizing the Economic Engine Think of an economy as a living organism. Just as a body relies on the constant circulation of blood to deliver nutrients and remove waste, an economy relies on the constant circulation of money. This flow is the lifeblood of economic activity, connecting every individual, business, and institution in a…
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The AI-Powered Indie Dev: A Practical Guide to Building a Full Game on a Budget (Game Development using AI)
Read more: The AI-Powered Indie Dev: A Practical Guide to Building a Full Game on a Budget (Game Development using AI)Introduction: The New Creative Frontier The landscape of game development is undergoing a seismic shift. For decades, the creation of a fully-featured game was an undertaking that demanded large teams, significant budgets, and years of specialized labor. Today, a new paradigm is emerging, powered by artificial intelligence. AI is no longer a futuristic concept but…
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The Point of No Return: A Definitive Guide to the Law of Diminishing Returns in Economics and Business
Read more: The Point of No Return: A Definitive Guide to the Law of Diminishing Returns in Economics and BusinessIntroduction: Beyond “More is Better” Imagine a business owner who has just tasted success. The first few employees hired have dramatically increased production. The initial marketing campaign has brought in a flood of new customers. The logical, almost intuitive, next step seems clear: double the inputs to double the success. Hire more staff, pour more…
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The Great Economic Debate: A Journey Through the Schools of Economic Policy
Read more: The Great Economic Debate: A Journey Through the Schools of Economic PolicyIntroduction: Why Economic Theories Matter From the stimulus checks that arrived during the COVID-19 pandemic to the news reports on the Federal Reserve’s battle against inflation, the abstract world of economic theory has a profound and tangible impact on our daily lives. These policies are not born in a vacuum; they are the practical application…
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The Economic Pros and Cons of Minimum Wage Policies
Read more: The Economic Pros and Cons of Minimum Wage PoliciesIntroduction Minimum wage laws set the lowest hourly rate employers are legally allowed to pay workers. First adopted in places like New Zealand in the 1890s and the U.S. in 1938, their goal was to prevent exploitatively low pay and ensure a basic standard of living. Today, most economies have some form of minimum wage,…
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How AI Is Reshaping the Future of Work—And What You Can Do to Prepare
Read more: How AI Is Reshaping the Future of Work—And What You Can Do to PrepareIn the rapidly evolving landscape of the 21st century, artificial intelligence (AI) stands as a transformative force, reshaping industries, redefining job roles, and demanding a proactive approach to career development. Understanding AI’s multifaceted impact and strategically preparing for its integration is paramount for sustained career success. The Profound Impact of AI on the Job Market…
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The Ultimate Guide to Market Structures: A Deep Dive into Competition, Power, and Strategy
Read more: The Ultimate Guide to Market Structures: A Deep Dive into Competition, Power, and StrategyIntroduction: Decoding the Competitive Landscape In the world of economics and business, the concept of market structure is fundamental. It is the framework that describes how firms are organized and categorized based on the type of goods they sell and the nature of competition they face.1 Understanding market structure is essential because it profoundly influences…
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Field of Schemes or Engines of Growth? A Definitive Economic Analysis of Professional Sports Stadiums
Read more: Field of Schemes or Engines of Growth? A Definitive Economic Analysis of Professional Sports StadiumsThe Billion-Dollar Question: Are Pro Sports Stadiums a Winning Play for Cities? The modern professional sports stadium is often presented as more than a venue for athletic competition; it is framed as a civic monument, a powerful economic catalyst, and a unifying source of community pride. Across North America, cities are engaged in a perpetual…
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Buckeyes vs. Longhorns: A 2025 Season Opener for the Ages
Read more: Buckeyes vs. Longhorns: A 2025 Season Opener for the AgesWhile college football has already kicked off for the 2025 season, the first marquee matchup that could fundamentally change the landscape of college football playoffs takes place in Columbus, Ohio between the Texas Longhorns and the Ohio State Buckeyes. A rematch of last year’s semifinal, where Ohio State edged Texas with some late game heroics…
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Is Gaming a Relationship Red Flag? Let’s Break Down the Stereotypes
Read more: Is Gaming a Relationship Red Flag? Let’s Break Down the StereotypesA balanced look at gaming, relationships, stereotypes, and why video games are not automatically a red flag in modern dating or everyday life.
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How to Build a Retrieval Augmented Generator (RAG) from Scratch
Read more: How to Build a Retrieval Augmented Generator (RAG) from ScratchRetrieval Augmented Generation (RAG) is a powerful approach in AI that combines the strengths of large language models (LLMs) with external knowledge retrieval. By augmenting LLMs with external databases, documents, or APIs, RAG enables accurate and up-to-date information retrieval, dramatically improving the quality of generated responses. What is Retrieval Augmented Generation (RAG)? A RAG system…
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AI vs. Software Engineers: A Nuanced Look at the Future of Work
Read more: AI vs. Software Engineers: A Nuanced Look at the Future of WorkRecently, at the Pennsylvania Energy and Innovation Summit, Mike Rowe of “Dirty Jobs” fame says “We’ve been telling kids for 15 years to learn to code. Well, AI is coming for the coders. It’s not coming for the welders, the plumbers, the steamfitters, the pipefitters, the HVAC, or the electricians.” While this statement is true…
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Understanding Inflation: How Different Products Affect Our Perception of Price Increases
Read more: Understanding Inflation: How Different Products Affect Our Perception of Price IncreasesUnderstanding Inflation: How Different Products Affect Perception of Price Increases Inflation is the general increase in prices across an economy, resulting in decreased purchasing power of money. Purchasing power refers to the amount of goods or services that one unit of currency can buy. Let’s explore how inflation impacts consumer perceptions differently depending on the…
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How to Build a Simple LLM-Powered App from Scratch
Read more: How to Build a Simple LLM-Powered App from ScratchIn recent years, Large Language Models (LLMs) like OpenAI’s GPT have transformed how developers create powerful, intelligent applications. If you’ve been wondering how you can build your own app powered by these cutting-edge technologies, this guide will walk you through the essentials, step by step. Step 1: Define Your App Idea Every great app starts…
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Comparative Advantage, Specialization, and Trade: The Foundations of Global Economics
Read more: Comparative Advantage, Specialization, and Trade: The Foundations of Global EconomicsWhen we discuss global trade and economic growth, concepts such as comparative advantage, specialization, and trade frequently emerge as central themes. Understanding these concepts is essential to appreciating how nations and individuals benefit from engaging with each other economically. What is Comparative Advantage? Comparative advantage is an economic theory first introduced by economist David Ricardo…
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The Great Shift: Where Did All the Jobs Go? A 20-Year Look at Industry Disruption
Read more: The Great Shift: Where Did All the Jobs Go? A 20-Year Look at Industry DisruptionRemember the concept of a “job for life”? For our parents’ and grandparents’ generations, it was a tangible reality. You started at a company, learned the trade, and retired 40 years later with a pension and a gold watch. Today, that idea feels like a relic from a black-and-white movie. Over the last 20 years,…
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Real-World Budgeting: Case Study Insights to Boost Your Savings
Read more: Real-World Budgeting: Case Study Insights to Boost Your SavingsUnderstanding where your money goes is the first step toward financial freedom. In this case study, we’ll walk through three months of real-world transactions, highlight key insights, and offer actionable strategies to improve your budget without feeling deprived. Historical Budget Analysis Below is a summary of net income versus expenses from January through March 2025:…
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Roth IRA Calculator
Read more: Roth IRA CalculatorHere is a simple Roth IRA Growth Calculator I built using AI. I used the prompt: “Build an app that calculates long term growth of a Roth IRA based on a given interest rate (average return), time length in years, and annual contribution”The prompt is simple and direct, thus the result is equally simple. I…
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Will AI Destroy Jobs or Redefine Them? An Economic Perspective
Read more: Will AI Destroy Jobs or Redefine Them? An Economic PerspectiveAs artificial intelligence (AI) increasingly integrates into every aspect of modern life, one pressing question emerges: Will AI eliminate jobs or simply redefine them? From an economic viewpoint, the answer may be more nuanced than it initially appears. Understanding the Historical Context Throughout history, new technologies have often sparked fears of widespread unemployment. From the…
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Unlocking the Hidden Value: Understanding Producer and Consumer Surplus
Read more: Unlocking the Hidden Value: Understanding Producer and Consumer SurplusEver wondered what makes a great deal feel so good? Or how businesses profit while still delivering value to their customers? The answers lie in two fundamental economic concepts: consumer surplus and producer surplus. These ideas help us understand the benefits that both buyers and sellers gain from market transactions, illustrating the efficiency and welfare…
