When my son Steve here was in school there were no computers. He has to ask his little sisters about them. They know about them because they were everywhere when they went to school. If a grownup wants to know something about computers, they can ask a kid. When you are grown, there will probably be things so new that if you want to know about them you will have to ask a kid.
New things can seem like magic.
They really are magic if you don't know what they are or how they work. Let's say some people who had lived in caves all of their lives and had never been to school or to a city, and who knew nothing about science, suddenly saw an airplane fly over them for the very first time. They might think it was magic, or maybe they might think it was a god. They might be very afraid of it. They might even worship the airplane and pray to it.