Which is better for growth: Blog or Twitter?

Blogging feels like a "classic" approach while Tweeting would be the more "modern" approach but really they go hand in hand. You can break down blogs into Tweet threads to promote them and turn threads into short-form blogs. It doesn't even really matter which comes first, as long as you're using them both together like that.

If tweeting is a form of microblogging, why do we need a full-on blog?