Board Thread:General Discussion/@comment-208.101.199.133-20141124042253/@comment-35248429-20190831015406

Gsimenas wrote: Speculation by characters doesn't make it an automatic fact. Characters have been wrong about stuff before. And this has never been contradicted in any fashion since publication. No other evidence has even been given in the series other than what was stated about play time.

It's a lot like why kirito ended up in Sylph terrirtory, player theory is all we have to go on.