1. When a bug is not an error, but a reflex

Developers often repeat the same error, even after they have fixed it once. The reason is not ignorance, but muscle memory: the editor automatically finishes writing the code, the fingers press familiar shortcuts on their own, and the brain acts by inertia. Like Pavlov's dog, the behavior is triggered unconsciously - and the bug returns again and again.

2. Behavior is embedded in the tools

Modern IDEs help write code faster by offering autocompletion, formatting, and templates. But this is where the danger lies: if the same method has been used before, the system will offer it again - even if it is not suitable. This is how an erroneous pattern becomes fixed at the level of habit. This happens especially easily in template code, where a lot is copied automatically. ⸻

3. How to "unlearn" to make mistakes

The first step is awareness. Sometimes it's worth slowing down and trying to write a section of code manually, without hints and auto-completions. It's useful to temporarily disable automation or change your usual hotkeys. Analyzing recurring errors also helps to identify behavior patterns that have become ingrained at the motor level - which means they require not only logical correction, but also retraining.

4. Code should not be familiar, but understandable

Good architecture requires thoughtfulness, as opposed to reflexive actions. Code should be read as clear text, and not as a set of familiar structures. It's better to spend a little more time on structuring than to automatically repeat established but ineffective patterns. Habits are a powerful tool, but if you don't control them, they will start writing code for you. And not always the one you need.