Okay little one, let me explain to you what error-correcting codes with feedback means. Whenever we send information like pictures or messages, sometimes it can get mixed up or garbled along the way, just like how sometimes your words get mixed up when you try to talk really fast.
Error-correcting codes are like a secret code that helps fix any mistakes in the information when it gets sent. It's like a magic spell that can make sure the message gets to the intended person just the way it was meant to be.
Feedback means that the code can also tell us if there was an error in the message and try to fix it. It's like asking someone "Did you understand what I said?" and they tell you if they didn't, so you can try to explain it again in a better way.
These error-correcting codes with feedback are really important for things like sending important documents or even controlling robots. We don't want any mistakes to happen and these codes help make sure everything goes smoothly.