It's a possibility, but there's no way of knowing for sure now. The test... did allow some of us to go back to our homes for less than a day, and one other person was sent with us. After that day finished, there were some... dramatic altering to our memory, as the person who had visited the world ended up believing that they were from there all along, which I don't believe was an intended side-effect. Nonetheless, it's all been set back to normal, now.