I think what most bloggers are doing is thinking out loud.
It’s a little misleading to talk of “putting things into words,” because that implies the ideas come first. In fact, expressing thoughts creates them. And especially expressing thoughts to other people, even people you don’t know. So I think the reason many people like blogging is that they like the thinking it causes.
Paul Graham on What Drives Bloggers
I'm exploring Paul Graham’s idea that blogging is essentially "thinking out loud." He argues that the process of expressing thoughts to others actually creates those ideas, making the act of writing a generative tool for thinking.