When you read a sector from your hard drive and expect to get back what you wrote, you're citing a statistical prediction as fact.

I think everyone in this thread is fine with it.

I think it was just because they didn't realise, rather than being fine with it.

No, it's because they are fine with it.

You'd be surprised at how much day to day stuff you consider an "fact" is actually "statistically correct" rather than an absolute.