For the conversionally challenged, a petabyte is a quadrillion bytes.
Mega = million
Giga = billion
Tera = trillion
Peta = quadrillion.
So to put it in perspective...
80 petabytes is 80 million gigabytes.
If you were doing things the old-fashioned way and typing using courier font, 1" margins, and single-spaced lines, you would get about 500 words per page (roughly 2500 characters). At that rate it would take 32 trillion pages to equal 80 Pb of data. That's 128 billion reams of paper. At 2" per ream the pile would be 4 million miles high (and that's stacked flat!). That's 16 times the distance from the earth to the moon. Or a few trips around earth's equator. 168 of them, to be exact.
Set the paper end to end and it would be a line of pages 5.6 billion miles long, or 60 times the distance from the earth to the sun. At 186,282.397 miles per second it would take a beam of light 8.3 hours to traverse the distance.
And if that isn't enough...
If every one of the estimated 320 million people of the United States could sustain a 100 wpm typing speed, and do so for eight hours a day every day, it would take 104.16 days to finish an 80 Pb document.
Brad