Why tab is exactly 8 spaces (by default)

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Shared November 15, 2025

Ever wondered why pressing “Tab” jumps exactly 8 spaces by default? It’s not random — it’s a leftover from typewriters and early code editors. Back when memory was scarce and alignment mattered, 8 spaces struck the perfect balance between efficiency and readability. Too small, code looked cramped. Too wide, lines broke too early. So developers locked it in — and decades later, we still tap into a rule written for machines older than most of us. A tiny design choice that shaped how we write, code, and think. #DidYouTech #TechHistory #DesignDecisions #Programming #TabKey #UserExperience #Engineering