It's very hard to say whether electronic data preservation will resist going further. Technologies change and data formats are lost and forgotten. People make breaking changes and those who can't or won't adapt will lose their data.
Lots of data will also be lost to encryption - still stored on some tape, but with no one alive to remember who may have owned the keys, where they may be stored, and what formats everything is.
I would bet that a vast amount of the data stored today in S3 that will never be read again - either because it will be forgotten or actually deleted by Amazon (people stop paying their bills, companies go bankrupt).
Not to mention, we already know of things like the source code of 10-20 year old games that people still play having been entirely lost.
Lots of data will also be lost to encryption - still stored on some tape, but with no one alive to remember who may have owned the keys, where they may be stored, and what formats everything is.
I would bet that a vast amount of the data stored today in S3 that will never be read again - either because it will be forgotten or actually deleted by Amazon (people stop paying their bills, companies go bankrupt).
Not to mention, we already know of things like the source code of 10-20 year old games that people still play having been entirely lost.