Market validation is the process of determining if there’s a need for your product in your target market. Validating your feature/product idea can enable you to reasonably predict
Data beat opinion, your identified problems or ideas would still be assumptions or hypotheses until it is validated with qualitative and quantitative data
All products or features start with an idea and Ideas can come from anyone maybe through personal discovery or encountered problems, or for companies through external channels (Customer Research & Data, Competitor Analysis, Industry & Technology trends)