I think if you’ve read this post and you start reading Unsong, there’s not much chance that you wouldn’t guess they’re connected (I also did while Unsong was still being written, as did many of the readers in comments), so you’re not much worse off than if you had somehow stumbled across Unsong independently (which most will not); but if you read & liked this post, you might not know you want to read Unsong as well and will be much better off following my hint.
I think if you’ve read this post and you start reading Unsong, there’s not much chance that you wouldn’t guess they’re connected (I also did while Unsong was still being written, as did many of the readers in comments), so you’re not much worse off than if you had somehow stumbled across Unsong independently (which most will not); but if you read & liked this post, you might not know you want to read Unsong as well and will be much better off following my hint.