ELI5: Explain Like I'm 5

vector clocks

Vector clocks are like a special way of keeping track of time. They keep track of the exact order in which things happen, like music notes that describe a song. They help us remember when events happen even if there are lots of things happening all at the same time. It's like the hands on a clock that measure the seconds, minutes and hours. Vector clocks measure the same thing but instead of seconds, minutes and hours, they measure the order of events.
Related topics others have asked about: