The very first hard drive needed a forklift to be moved and stored the equivalent of one MP3 file. A modern drive that weighs a bit more than an iPhone can hold 2 years worth of MP3s. Still, current storage devices can't keep up with humanity's deluge of data. All the world's data could fit in the trunk of a car using nature's oldest storage device: DNA. It's possible to read, write, and copy this data and, unlike the first hard drive, DNA will never be obsolete.