That's because the specific information on the disk was initially generated by, and is the consequence of, a great many previous events. Even if we assume the d

That's because the specific information on the disk was initially generated by, and is the consequence of, a great many previous events. Even if we assume the disk holds only the complete works of Shakespeare, we would need to understand vastly more than just the drive's physics, in order to understand it completely. That does not imply that the explanation for the drive, as we find it with its specific contents, is not reducible to physics, but performing such a reduction is not the path to understanding it.