>>9159238Everything on the internet has to be hosted somewhere so that someone can download it. Torrented file (or torrent's content) is hosted on various people's computers if they don't remove it and leave their torrent client running. This is called seeding.
If all the people who have downloaded a torrent remove it, then it won't be hosted anywhere and will be inaccessible for everyone else.
So seeding is basically decentralized hosting.