Writing is a skill and like any other skill the only way to get good at it is to practice. Blogging is ideal for this. Blogging is hardly ever long-form writing so writing posts is a good way to practice in bite-sized chunks. A side benefit of writing is that it’s a necessary component to being a good thinker and writing, as Paul Graham says [1b], is a precursor to thinking. Guo agrees with this and also notes that writing helps him clarify his thinking.

He gives several other reasons to blog including

• Sharing knowledge
• Learning things
• Learning how he’s wrong

[1b1] https://twitter.com/paulg/status/1639954042372730881 [1b2] https://nitter.net/paulg/status/1639954042372730881#m