It's said that methods like Zettelkasten make writing easier, but even with them, writing is still hard. Because you're given the raw material, starting to write and organizing the content get easier, but writing in detail is still difficult. In fact, I think the difference between good writing and merely adequate writing lies in the details. Whether a piece is persuasive and engaging is decided there.
Whether I was writing a newsletter or a book, I've felt the psychology of getting stuck many times. I felt it especially acutely during my master's thesis. When you get stuck writing, you feel discomfort and anxiety. Your mouth clamps shut and your eyes glaze over. You stare fixedly at the monitor. Your hands freeze over the keyboard, tapping at it. And because of that discomfort, you sometimes try to avoid it by escaping to social media. I imagine many people have felt this.
This phenomenon is called writer's block. To get past it, I read all sorts of articles and ran experiments. As a result, I found that most of the methods rest on one shared principle.
That principle was "remove constraints when diverging". Most knowledge work is divided into a divergent stage and a convergent stage. Removing constraints during divergence is a principle that applies to all knowledge work. A well-known example is brainstorming, where criticizing other people's ideas is forbidden during the idea-gathering stage. The moment there is even a little criticism, coming up with ideas gets inhibited, and that blocks the gathering of ideas.
Collecting temporary notes in Zettelkasten, or dumping whatever comes to mind into the Inbox in GTD, is likewise meant to remove constraints during divergence so that gathering thoughts and material goes smoothly. I once made a video about this, too.
Writing is the same. Writing is also divided into a divergent stage and a convergent stage, and when you get stuck, it's usually because you're imposing constraints on yourself during the divergent stage. Self-censorship is what keeps the words from coming. To use an analogy, it's like pressing the accelerator and the brake at the same time. So if you apply the principle of "remove constraints when diverging," writing gets a little easier.
There's one principle, but many ways to put it into practice. Below, I'll introduce the ways I've put "remove constraints when diverging" into practice in writing. I'm confident they'll help you right away.
1. Force yourself to write anything
Just write, wildly. You can write about the topic you need to cover, or simply put down whatever thoughts come to mind. This is actually known as the Freewriting technique. You could also think of it as a warm-up. As you force out whatever comes to mind, your head starts to feel warmed up, and the writing begins to flow.
You can use tools, too. The site 
WordSprints pushes you to write as many words as possible within a time limit. On WordSprints, you can set yourself the goal of writing as much as you can of the piece you need to write within the time limit. With a goal like that, you can put writing ahead of self-censorship. It's far easier to diverge recklessly first and polish the piece later during revision. The accelerator and the brake have to be pressed separately, not at the same time.
Also, writing doesn't have to happen in order. Start with the part that comes to mind. There's no need to write straight through from introduction to conclusion. If a conclusion comes to you vividly, write the conclusion first. In fact, when we decide to write about a topic, what often comes to mind isn't an outline of the whole piece but one vivid part of it that we want to put down.
If you start from the parts that come to mind and grow the overall volume of the piece this way, the anxiety of being stuck will fade. There's already a piece of writing, and you're much closer to finishing it. Some of the relief probably also comes from a bias toward action. Less anxiety frees you from tunnel vision, which helps you write better.
2. Write by speaking
Writing is easier when you write as if you were talking to someone. For expository writing, it helps to imagine someone in front of you and write as though you're explaining it to them. Speaking feels less constrained than writing. People make slips of the tongue, but they rarely make slips of the pen, don't they? It's easier to be careless when speaking than when writing (?)
Writing as though you're explaining to someone not only increases the volume but can also surface gaps you hadn't expected. Since you're speaking in order to persuade or explain to this person, you sense the leaps in logic or the places where your explanation falls short.
Speech-to-text (STT) can help in this process. As of 2026-09-29, I'm using a tool called Wispr Flow. Its recognition is quite good: when I speak, it converts my words into text in Korean or English.