Here's why:
* Abstract nouns represent concepts, ideas, qualities, or states of being. They are not physical things that you can touch or see.
* The future is a concept of time that is not tangible. It's an idea of what's to come, not a physical object.
Other examples of abstract nouns include:
* Happiness
* Love
* Freedom
* Justice
* Hope
Let me know if you have any other questions!