The popularity of ChatGPT revolutionized time. For learning, for many kinds of busywork (it's redefining what is and isn't "busywork), for planning. And most important: we don't know what we have yet because it's still being built. It's a tool. It's not the "capabilities" it's what people get out of it.

You mention blogging from the standpoint of writing it all yourself, and then using a tool to tweak it. That's not the revolutionary part. It's collaborating with the tool to write the post.