If you took everything human beings have ever written — an estimated 50 billion megabytes of text — and stored it in DNA, that DNA would still weigh less than a granola bar.”There’s no problem with holding a lot of information in DNA,” Goldman says. “The problem is paying for doing that.”Agilent waived the cost of DNA synthesis for this project, but the researchers estimate it would normally cost about $12,400 per megabyte. —NPR.