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L22 · Phase 6 · 20 min

Why Prompts Matter

“'Tell me about boilers' and 'Analyse this specific system…' get very different answers — why, and how do I write the second kind on purpose?”

Prompt Comparison Lab

YouTell me about boilers.
AI ToolBoilers heat water or generate steam for heating or hot water systems. There are many types — combi, system, conventional — each suited to different building sizes and needs.

No context, no constraints — a generic answer about boilers in general, not your system.

Depth ladder

'Tell me about boilers' and 'Given a 300 L tank and a 2 kW heater, how long will it take to reach 55°C?' are answered by the same model, but the second gets you a specific, useful answer because it actually gave the model something specific to work with.

Knowledge check

Given a vague prompt, rewrite it using at least two named techniques and explain the expected effect.