Which strategy is least effective in generating writing ideas?

The strategy of overthinking each idea before writing is least effective in generating writing ideas because it involves excessive analysis and self-criticism, which can stifle creativity and hinder the flow of thoughts. When writers spend too much time deliberating about each idea, they may become paralyzed by the fear of making mistakes or generating less-than-perfect concepts. This can lead to a lack of ideas altogether, as the writer may struggle to move past the initial stage of idea generation.

In contrast, methods like brainstorming, mind mapping, and free writing actively encourage the flow of ideas without immediate judgment. These strategies promote an open environment where creativity can flourish, allowing for a greater quantity of ideas to emerge. Essentially, while it's important to refine ideas eventually, the process of generating them should be free from the constraints of critical thinking in the early stages.