Another way that the Walkman differs from the iPod is the sheer amount of storage space of the latter device. An iPod user could go for weeks without hearing the same music twice, a phenomenon that makes the Walkman experience seem drastically finite and miniscule by comparison. Combined with the elimination of physical barriers to music consumption engendered by online file trading, this technology makes iPod use the aural equivalent of global tourism. The promises of the first portable transistor radio is now realized, as we have transcended the limits of radio transmission and international trade restrictions. With the iPod, you truly can hold the world of music in your hand.