What is your opinion on reactive technologies and their advantages?

Reactive technologies enable the creation of applications that efficiently process asynchronous data streams and events. Their main advantages:

• High responsiveness — the application reacts quickly to data changes.
• Asynchronous management — simplifies working with event and data streams, reducing code complexity.
• Scalability — allows processing a large number of events and users.
• Improved error handling — reactive streams support convenient mechanisms for exception handling.

For example, in Java, using Project Reactor or RxJava, it is easy to create event processing chains, which simplifies building complex asynchronous systems.