Twitter's followable topics may open big new audiences for the company, as well as polarize them; Twitter still thinks its "trending" section can be fixed (Casey Newton/The Interface)

Casey Newton / The Interface:
Twitter's followable topics may open big new audiences for the company, as well as polarize them; Twitter still thinks its “trending” section can be fixed  —  On Wednesday, Twitter invited reporters to its headquarters in San Francisco for an update on improvements to the product.