For now, it's just a test. Twitter does these all the time and only some result in a global roll-out. Still, it's useful to know what the company is working on. Chief executive Jack Dorsey has described the platform as "the people's news network" in a recent internal memo. If it's doubling down on journalism, it makes sense for the company to experiment with how the news is presented to people. Twitter doesn't have a competitor to Facebook's Instant Articles, or Google's AMP initiative both of which promise faster load times and a more consistent user experience. Reader, for now, could be a substitute while Twitter works on something in-house.