Storage for a billion years? A bold claim indeed, given time I might have to challenge this claim!

well... so much for cleaning our web browser history...

This is great news, but the problem isn't the length of time the disc lasts, it is the hardware that can play the disc that will be obsolete dust in probably 20 years.

A billion years... Most of you are probably too young to remember when they first launched CDs, but I'll never forget the ads which featured a Labrador retriever holding a CD in his mouth. I believe they also used the word, "indestructible" in their pitch. The inventors didn't even know they'd scratch and be useless. I'm sure this will prove to have a glitch somewhere too. I'm not telling you, I'm just sayin'...

Twinkies, Cock Rouches, Computer Disks will survive.

Will it survive a gamma ray burst? At what temp. does it start to lose integrity? Can it survive under water, freezing temps?

Impressive in its simplicity and its ruggedness. Can an easy to clean, non-stick frying pan with thousands of recipes stored in it be far behind?

How is data etched onto this indestructible material? Maybe acid? Maybe you mask it and leave it out in the polluted air. Ha! You know when you ask yourself, "Will it make a difference in 10 or 20 years?" and then ask yourself, "Will anyone care in a billion years?" Who knows? Will acid rain ruin it? This may indeed be a worthwhile project. The future thanks you.

I use the M-Disk which should last 1000 years. The good news is that they are readable in any DVD player, that's the bad news as well as the data density is that of a DVD. They say that they are working on a BD version but again that's low density. I'm unsure about how the data density of QR codes compares.

What they didn't point out was the disc can hold 128MB of data... so finding a safe storage spot that can hold a billion+ disks becomes an issue.