"So began my dream of integrating all my metadata. Somewhere there would be a large database into which my e-mail, web browser, file system, and so on would enter metadata. I'd then be able to, with relative ease, query the database to make connections between data items on my computer. On top of that database, graphical clients could be written to maintain and annotate it, and hooks written back into the browser, file manager, and e-mail client to allow the use of this extra information."