It's hard to say without knowing how their databases are set up, but it's conceivable that a world couldn't continue into perpetuity due to an ever-increasing amount of data. But I'm not sure what they do with it. Bigger disk drives on smaller pieces of equipment are always being created, so I wouldn't think that'd be an imminent issue. But if there really is a cap at 30, they've got 3 years to figure out what to do.