In a closed system, any process that occurs will tend to increase the total entropy of the system as time passes.
— Second Law of Thermodynamics
It's not just that all things must come to an end, but that the longer that series, books, and games go on, and the more changes they undergo, the likelier it is that something will get lost as time goes by. For example:
- Adaptation Decay
- Badass Decay
- Magazine Decay
- Menace Decay
- Motive Decay
- Network Decay
- Seasonal Rot (aka Season Decay)
- Trailer Joke Decay
- Trope Decay
- Uniqueness Decay
- Villain Decay