Why do we need reactive programming?

Related questions

1. What is single RxJava?
2. Why is RxJava used?
3. Does react use observables?
4. What is the difference between constructor and method?
5. How is back pressure created?
6. What's RxJava?
7. What is RxJava observable?
8. What is backpressure RxJava?
9. What is flatMap in RxJava?
10. What's the difference between a observable and a single?

Tags

1. #problem
2. #getter
3. #following
4. #causes
5. #changes
6. #because
7. #ensuring
8. #value
9. #mutable
10. #without
11. #addresses
12. #gives
13. #problems
14. #programming
15. #respond
16. #current
17. #reactive
18. #state