Messing with Facebook's algorithms produces some interesting results. In particular, the fact that the algorithms at Facebook decide that it's more "important" to show you marketing and link bait on mobile than updates from real people.
My News Feed took on an entirely new character in a surprisingly short amount of time. After checking in and liking a bunch of stuff over the course of an hour, there were no human beings in my feed anymore. It became about brands and messaging, rather than humans with messages.