I read two articles regarding copyright. The first one was about Huey Lewis and the Ghostbusters theme.
In 1983 Huey Lewis and the News released “I want a New Drug” and then in 1984 the Ghostbusters theme was released. After listening to both songs, it is pretty obvious how similar the songs sound. It doesn’t seem to me that it is a coincidence either because Columbia Pictures had asked Huey Lewis to make a song for Ghostbusters before the theme was made.
The second article I read was discussing if a tweet can be copyrighted or not. Unsurprisingly the answer was: it depends. While there is no clear line for what can be copyrighted and what can’t be I think there are situations in which tweets could be copyrightable material. Something like general statement as a tweet would not be able to be copyrighted but maybe something like a short poem or song lyrics that are tweeted out could be.