Regardless...
...of what you think of the article above (and I'm not qualified to make judgment, having no knowledge of quantum physics), I do believe in Poltergeist activity. My friend's son caused such activity about the time he was going through puberty. He had a new stepmother who he hated (with good reason) and some very odd things with flying objects happened almost nightly in her bedroom; radio turning on/off, on/off, a minor fire. She really should have been nicer to Seth. It lasted about a year and then stopped as suddenly as it had begun.