Relying on anecdotal assumptions is risky. This article showcases why data‑backed market research is non‑negotiable for decision quality. Sections cover: designing surveys and focus groups, balancing qualitative and quantitative methods, interpreting insights to uncover new segments or pain points, and integrating learnings into strategy. Octopus‑led examples highlight projects where deep customer understanding unlocked new product lines or repositioned brands for stronger market alignment.