In our increasingly digital world, we still cannot separate ourselves from physical objects. We [still] have physical bodies, not in energy or electronic form, and still interact with physical things. The computer/tablet/handphone that you’re holding? That’s your window into the digital world, although this ‘window’ still differs from person to person, and that’s if they have access. Perhaps you haven’t bought a CD for years and choose to look for songs on the Internet (regardless of legality)? You’d still need a set of speakers or headphones to listen to them.