If you're on any kind of social networking (or even if you aren't), it's pretty obvious that people spend more time reblogging other peoples' opinions than they do sharing their own. A single picture or statement could have thousands of shares and a million likes, all in mindless agreement.

Is it healthy for critical thinking to promote this kind of thing? It's pretty much the crux of Tumblr and Facebook. Letting other people speak for you, or thoughtlessly conceding to the opinions of others, is frowned upon when it comes to things like media and political influence. But yet it's become such a norm for people to do just that regarding a random Tumblr post, Youtube video, Tweet or Facebook status. What's up with that?