“(…) we’ll discuss how research planning can reduce costs and decrease the time it takes to perform user research. One of the biggest challenges in performing user research is determining which research approaches to apply and when to apply them. The research methods you choose are dependent upon a variety of factors, including budget, schedule, development phase, business goals, and research questions.”
How can you ever make something worthwhile if you haven’t looked into it, a.k.a. research.