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A common assumption is that adding an index will resolve query latency. In practice, indexes often fail to change execution behavior for less obvious reasons.
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Caching is usually introduced as a performance optimization. Over time, it often becomes a source of behavioral inconsistency that is harder to reason about than the system it was meant to improve.- Published on
Languages and frameworks change constantly. Foundational skills last. These are the core abilities that make developers effective across technologies and over time.- Published on
Debugging is not about guessing or trial and error. It is a systematic skill that relies on observation, reasoning, and understanding how systems actually fail.- Published on
Clean code is not about strict rules or elegance. It is about clarity, context, and making software easy to change over time.