Annotations

[kayiwa]

Twitter is introducing Topics right around the time Trending seems to be breaking.
https://twitter.com/kstewart/status/1192203432225984512

[edsu]

I think in the API these are generally known as Annotations, where a tweet can be annotated with a domain (a set of high level categories) and/or an entity (a bunch of places, people, products and organizations). I think it would be pretty interesting to surface these on the explore page, and allow people to use them when collecting data.