We're arguing over semantics. Here's the exact quote from the page you linked:
> designed to provide 99.999999999% durability of objects over a given year. This durability level corresponds to an average annual expected loss of 0.000000001% of objects. For example, if you store 10,000,000 objects with Amazon S3, you can on average expect to incur a loss of a single object once every 10,000 years
They are referring to durability as corruption in the underlying data store due to known storage-technology risks. If they were to take into account all other risks, they would also have to include the risks of nuclear war, cyber warfare, the US government classifying your organization as a terrorist threat, etc etc.
> designed to provide 99.999999999% durability of objects over a given year. This durability level corresponds to an average annual expected loss of 0.000000001% of objects. For example, if you store 10,000,000 objects with Amazon S3, you can on average expect to incur a loss of a single object once every 10,000 years
They are referring to durability as corruption in the underlying data store due to known storage-technology risks. If they were to take into account all other risks, they would also have to include the risks of nuclear war, cyber warfare, the US government classifying your organization as a terrorist threat, etc etc.