Reminds me of the 'leafs' from Anathem[0]. for sure none of the current digital storage artifacts will be readable in +500 years, like scrolls. Contiguous upgrade required by digital will always have a cost and only 'certain' items will end up surviving, where the criteria for choosing will vary with fashion, religion, politics. Wonder is archaeologist in 2500 CE will reveal "500 years old file discovered in digital archives" and then, year later, announce the succesful decoding of an original cca. 2016 animated cat GIF...