Imagine you wanted to understand how a computer works and all you could see was a keyboard, a mouse, a screen. You really would be kind of out of luck. You want to be able to open it up, crack it open, look at the wiring inside.
Imaginen que quisieran entender el funcionamiento de una computadora y todo lo que vieran fuese un teclado, un ratón, una pantalla. Sería muy desafortunado. Querrían verla abierta, totalmente abierta, ver el cableado interior.