In The Conversation: How are dark matter and antimatter different?
Imagine an epic video game with your favorite hero as a character. Another character is a mirror-image twin who shows up occasionally, exploding everything they touch. And, to add an extra level of difficulty, the game includes a mysterious hive of minions hiding at every corner, changing the rules of the game, but never showing themselves.
If you think of these characters as types of matter, this video game is basically how our universe works.