Convergent thinking is a technique used to narrow down a large number of ideas into a smaller group or a single idea. This technique is typically used during the later stages of idea generation when it is necessary to focus on a smaller number of ideas. For example, in product development, you can use convergent thinking to help choose the most promising direction for further action and analysis. This technique can help identify the critical features and decide which aspects of the product need to be developed further. Using convergent thinking, developers can ensure that they focus their efforts on the most critical development elements and not waste time on ideas that are not likely to be successful.