Real world example for loopback address

Question

What can we get as an example of the real world for understanding the loopback address? As an example for broadcasting, we can explain the use of radio stations and multi-casting as a video conference and a single use as a regular phone call. So what is a real world example for a loopback address?

Answer 1

Without a loopback interface, you cannot connect to any application on any other application on your local computer.