Also, you probably need a root to place signals and effects in a separate scope that can be isolated from the rest of the signal tree and disposed manually, for

Also, you probably need a root to place signals and effects in a separate scope that can be isolated from the rest of the signal tree and disposed manually, for you know when you have a SPA with multiple pages and tables and you want to be able to update those tables and reorder them and go back and forward in your browser history without it leaking memory like the Titanic. I am struggling to do this myself so not saying I have all the answers here.