I agree; what counts as a filing system remains to be seen. Hence why I used a "sufficiently large" pile of stone tablets, to put it beyond doubt that it's not

I agree; what counts as a filing system remains to be seen. Hence why I used a "sufficiently large" pile of stone tablets, to put it beyond doubt that it's not organized regardless of how strict or relaxed the interpretation. I don't recall the source at the moment, but one convincing argument I've heard was that an amount of disorganized data that you can organize given a few hours time would probably be treated as equivalent to organized data in the eyes of the authorities, otherwise you'd have a trivial loophole.