I have no idea whether this is true, or whether it is some kind of hoax:

…Facebook data scientists tweaked the algorithm that determines which posts appear on users’ news feeds—specifically, researchers skewed the number of positive or negative terms seen by randomly selected users. Facebook then analyzed the future postings of those users over the course of a week to see if people responded with increased positivity or negativity of their own, thus answering the question of whether emotional states can be transmitted across a social network. Result: They can! Which is great news for Facebook data scientists hoping to prove a point about modern psychology. It’s less great for the people having their emotions secretly manipulated.

And apparently if you are on Facebook, you have already agreed to be a guinea pig:

In order to sign up for Facebook, users must click a box saying they agree to the Facebook Data Use Policy, giving the company the right to access and use the information posted on the site. The policy lists a variety of potential uses for your data, most of them related to advertising, but there’s also a bit about “internal operations, including troubleshooting, data analysis, testing, research and service improvement.” In the study, the authors point out that they stayed within the data policy’s liberal constraints by using machine analysis to pick out positive and negative posts, meaning no user data containing personal information was actually viewed by human researchers. And there was no need to ask study “participants” for consent, as they’d already given it by agreeing to Facebook’s terms of service in the first place.

Which means no one who uses Facebook has any right to complain.

Just go with the fucking herd, and that’s that!

Here’s the study, so get with the program:

We show, via a massive (N = 689,003) experiment on Facebook, that emotional states can be transferred to others via emotional contagion, leading people to experience the same emotions without their awareness. We provide experimental evidence that emotional contagion occurs without direct interaction between people (exposure to a friend expressing an emotion is sufficient), and in the complete absence of nonverbal cues.

Not surprising.

I’m only curious whether this is a legitimate study or more of just feeding people what they want to hear.