Yes, I do believe it..I've read many articles of people who can do it, and science has entered the picture as well documenting the results. The closest I ever came to being able to do it, was when I was laying in bed once looking at the light beneath the door to my room. I kept concentrating on the light under the door trying to make it go off. And it did go off! Then I concentrated for it to go back on and it did...Of course this was a long time ago and I was quite buzzed....