The 144 words of Robert Frost\u2019s seminal poem \u201cThe Road Not Taken\u201d fit neatly onto a single printed page or a 1 kilobyte data file. Or in Hyunjun Park\u2019s hands, a few drops of water in the bottom of a pink Eppendorf tube. Well, really what\u2019s inside the water: invisible floating strands of DNA. Scientists have long touted DNA\u2019s potential as an ideal storage medium; it\u2019s dense, it\u2019s easy to replicate, it\u2019s stable over millennia.