We normal people do not uses the binary number system, but our computers, phones, and other electronics do.
You see the binary number system is used for electronics to communicate. It is used whenever you type something in like a site. Then the electronic, lets say… computer communicates with other computers to get the site link through binary code. The binary system is made up of different words with the numbers 1 and 0. So for example, Hello my name is Matthew is 01001000 01100101 01101100 01101100 01101111 00100000 01001001 00100000 01100001 01101101 00100000 01001101 01100001 01110100 01110100 01101000 01100101 01110111 00101110 in binary. That’s a lot I know. (I used a translator I am not that smart, but maybe I am) You can translate it for yourself. This is the language of the internet and it is used by electronics for communication. It is pretty interesting and I hope you learned from this, or maybe you didn’t learn anything. But it is interesting, I don’t know, but whatever see ya. Also a little tip, make a post or use an essay or something, copy it, then search for a binary translator, paste it into the translator, and see what it means in binary code, I did for mine and it is a lot. That gives you a good idea on how much your computer, phone or whatever processes when you type something or put in a link. I almost forgot to mention that it goes super fast, maybe around the speed of light, or faster. Pretty much we are super slow motion to the computer, to us it is super fast speed. Anyway thats about it, hope you enjoyed reading.