 And they're told that these three players are three other real people who are sitting in rooms as well. So they think they're real people. They said, the task is simple. You're just going to press this little button on this computer and you can pass the ball towards any of the other three players that you want to. They'll then pass the ball back to you. Unknown to the participants, the other three avatars were not real players. They were part of the experimental team.