Tecnica

The Substack 'Tecnica' discusses insights on various topics including complex systems, benefits of blogging, Java programming techniques, finding happiness in the present, hackathon experiences, color processing in images, genetic algorithms, decision-making in life, coding interview strategies, and university learnings. It emphasizes understanding, self-improvement, and practical techniques.

Complex Systems Blogging Java Programming Happiness Hackathons Image Processing Genetic Algorithms Life Decisions Coding Interviews University Education

The hottest Substack posts of Tecnica

And their main takeaways

Complex systems emerge from simple rules

55 HN points • 28 Jul 24
🔬 Science Biology Physics Chemistry Emergence Complexity
  1. Complex systems can develop from just a few simple rules, like in the Game of Life. It shows how starting with basic ideas can create amazing patterns and interactions.
  2. Emergence means that new, complex properties appear from simpler components interacting together. This is true for nature, biology, and even technology like AI.
  3. Human thoughts and actions also have an emergent nature. We often wonder where our ideas come from and what rules guide our decisions.

Why you should start a blog

0 implied HN points • 22 Jul 24
🚌 Education Blogging Writing Communication Self-Improvement
  1. Starting a blog helps you understand yourself better and see how your thoughts change over time. It's like a public journal where you can share what you've learned with others.
  2. A blog can boost your personal brand and help you connect with people in your professional life. It shows your unique strengths and values to others online.
  3. Writing a blog improves your communication skills. You learn how to express your ideas clearly, which is important for avoiding misunderstandings.

How to write beautiful Java

0 implied HN points • 28 Jul 24
🕹 Technology Programming Software Development Java Coding
  1. Using streams in Java can make your code cleaner and easier to read. It helps you focus on what you want to do instead of how to do it.
  2. Instead of checking for null values with messy if statements, use Optionals for a more elegant solution. This can make your code safer and cleaner.
  3. Refactoring your code with these techniques can greatly improve its quality. Small changes can lead to a more enjoyable coding experience.

How to !win a Hackthon

0 implied HN points • 24 Jul 24
🕹 Technology Coding Innovation Events Networking Education
  1. Hackathons are a great way to meet new people and network for job opportunities. Companies often sponsor these events looking for talent.
  2. It's important to be spontaneous and work with different people. Picking random team members can lead to new ideas and creativity.
  3. Don’t overthink your project idea or spend too much time planning. Choose tools you haven't used before to keep the experience fresh and exciting.
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256 Colours are all you need

0 implied HN points • 28 Jul 24
🕹 Technology Computing Graphic design Data processing
  1. Dithering is a technique used in digital images to make them look better with fewer colors. By mixing colors, it tricks our eyes into seeing more depth and detail.
  2. True-color images have over 16 million colors, but most images only need around 256 colors. Using a smaller palette can save space without losing too much quality.
  3. Old computer systems used 'dither' to improve calculations, and similar methods in image processing help create better images even with limited color choices. This shows how clever techniques can enhance user experiences with less.

An Introduction to Genetic Algorithms

0 implied HN points • 28 Jul 24
🕹 Technology Algorithms Artificial Intelligence Optimization Computer Science Data Analysis
  1. Genetic algorithms mimic natural evolution. They start with random solutions and improve them through processes like crossover and mutation to find better answers to problems.
  2. A genetic algorithm works by creating a group of solutions and then mixing and matching them to form new solutions. The best-performing solutions are kept for the next generation.
  3. While genetic algorithms are easy to implement and can explore many options at once, they might not always find the best solution quickly and can be tricky to set up because of the need for a good fitness function.

Don’t try to optimise life decisions

0 implied HN points • 28 Jul 24
📖 Philosophy Decision-making Existentialism Rationality Chaos Theory Human behavior
  1. Life decisions can be unpredictable, and overthinking them isn't always helpful. Sometimes, a seemingly small choice can lead to big changes.
  2. We often need to balance enjoying the present and thinking about the future when making decisions. It's a choice between being happy now or planning for what's ahead.
  3. Accept that life is a chaotic system, and not every decision will turn out the way you expect. It's okay to embrace the uncertainty instead of trying to control everything.

Follow these steps to ace your next Coding Interview

0 implied HN points • 28 Jul 24
🚌 Education Coding Interviews Career development Skill Building Problem Solving
  1. Always start by understanding the problem well. Ask questions and take notes, which will help you cover all important details and edge cases.
  2. Propose a simple, brute-force solution first. This shows you know the basic approach, and you can compare it to the optimal one later.
  3. Before coding, plan out your solution thoroughly in comments. This helps you clarify your thoughts and reduces mistakes when you start writing the actual code.

What I learned at University

0 implied HN points • 28 Jul 24
🚌 Education Higher education Learning methods Career development Personal Growth Networking
  1. Going to university is still a good choice because it can open up job opportunities. But just having a degree won't guarantee success, so you need to gain extra experiences.
  2. You learn useful study skills and problem-solving strategies in university. However, to really prepare for a job, you should also do projects and learn on your own.
  3. Make sure to network and gain experiences while in university. Connecting with others and participating in events can really help shape your future career.