---
title: "Discussion on \"Why Big-O Actually Matters (Even If You Think You'll Never Use It)\" | Hashnode"
description: "Discussion on \"Why Big-O Actually Matters (Even If You Think You'll Never Use It)\". If you’re anything like me, the first time someone explained Big-O notation, it felt like they were trying to measure my code using math from another galaxy.\n“This algorithm is O(n log n).”“Bro… I just want my code to work.”\nSame energy.\nBut the deep..."
url: "https://hashnode.com/posts/why-big-o-actually-matters-even-if-you-think-youll-never-use-it/692f30414c23aeae602abc3c"
---

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# [Why Big-O Actually Matters (Even If You Think You'll Never Use It)](https://joelcodes.hashnode.dev/why-big-o-actually-matters-even-if-you-think-youll-never-use-it?utm_source=hashnode&utm_medium=feed)

If you’re anything like me, the first time someone explained Big-O notation, it felt like they were trying to measure my code using math from another galaxy. “This algorithm is O(n log n).”“Bro… I just want my code to work.” Same energy. But the deep...

Dec 2, 2025 · 3 min read · joelcodes.hashnode.dev  
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-   [#big-o-notation](https://hashnode.com/tag/big-o-notation)
-   [#algorithms](https://hashnode.com/tag/algorithms)
-   [#beginners](https://hashnode.com/tag/beginners)
-   [#beginner](https://hashnode.com/tag/beginner)
-   [#coding](https://hashnode.com/tag/coding)
-   [#programming-blogs](https://hashnode.com/tag/programming-blogs)
-   [#code-optimization](https://hashnode.com/tag/code-optimization)

## Written by

[Joel Tikoo](https://hashnode.com/@joeltikoo)

@joeltikoo · Pune, MH, India

  
[View profile](https://hashnode.com/@joeltikoo)

Uni student trying to code

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