just like going to an all you can eat buffet, you're _limited_ by what you can fit in your stomach. it's pretty simply.

Do you also consider your unmetered fiber connection to not be unlimited?

Almost all wireless plans have a cap on the amount of data you can download on top of the speed cap.

so the only true unlimited internet is the one that have infinite bandwidth

This is surely satire. Obviously most people wouldn’t understand the relevance of or know where that number came from.