Writing is thinking. You can write first then derive clear perspectives from your own writing.
Podcast: 科技島讀請回答
Michael Chou is the author of Daodu.tech (科技島讀), the subscription newsletter about technology and business strategy. It is like the Traditional Chinese version of Stratechery from Ben Thompson.
In the last episode of Daodu.tech's podcast, Michael was asked about his suggestion on writing and how to be informative. He answered that, when you haven't had a clear thought to elaborate, you should start writing first and the idea will get more concrete and clear by the process of writing. Therefore, you just have to start writing. Writing itself is thinking.
This also resonated with what Mark Zuckerberg said in his 2017 Harvard Commencement Address. "Ideas don’t come out fully formed. They only become clear as you work on them. You just have to get started".