Signal is all about the stuff you actually want. For some, it’s a steady stream of social media entries. For others, it may be a steady stream of parenting items. Or baseball discussions.
Discovery is the middle ground. It’s things you weren’t looking for, but find interesting. Maybe Flickr Favoritedpictures. An interesting tidbit from the world of science. An Inquisitr celebrity update.
Noise is the stuff you just don’t have the patience to put up with. It’s not anything you’re seeking, it’s annoying you that it’s even on your screen.
—VIA – Hutch Carpenter