Think of a toy car that doesn’t have any batteries. No matter how much you push it, it just won’t go by itself. This toy car is incapable of moving on its own because it needs something, like batteries, to work. It’s like when you want to draw, but you don’t have any crayons. Without crayons, you’re incapable of drawing colorful pictures.
Imagine a bird with wings that are too small. Even though it tries really hard to fly, it just can’t lift off the ground. The bird is incapable of flying because its wings aren’t big enough. It’s like trying to reach a cookie jar on a high shelf without a stool. Without something to help, you’re incapable of reaching the cookies.
Think about a computer that doesn’t have any internet connection. You want to watch your favorite videos, but it just can’t load them. This computer is incapable of showing you videos because it needs the internet to do so. It’s similar to wanting to listen to music but not having a radio or a music player. Without them, you’re incapable of hearing your favorite songs.