Penn & Teller's Light Heavy Box Magic Secret Revealed!

In this video, I will reveal Penn & Teller's famous light or heavy box illusion, which they performed on Fool Us. Here is a quick recap of the performance. In this trick, Penn starts the performance by having his assistant bring a cardboard box onto the stage using a rolling platform. He invites two random spectators to join his act, and asks them to pick up the box just as he does, following his command. He also instructs them to raise it to a specific height, which he indicates with his hands above the box. After lifting the box once to show that it's empty, he claims they will become weak as women in French. After casting his spell, Penn asks the spectators to pick up the box, but they are unable to do so, even with all their might. Penn then tries to pick up the box and easily does it, but when he urges them to genuinely attempt to lift it, they still fail. This cycle repeats several times, with moments when they can lift the box, followed by moments when they cannot. For the grand finale, Penn picks up the box, to reveal the box was empty, and that Teller had been inside it the entire time. How did he perform this trick? Here is an explanation. I will give some hints, see if you can figure this trick out on your own before I explain the secret. You will notice that whenever Penn asks the assistants to lift up the box, he raises both of his hands right above the box, and doesn't allow them to raise it higher than a specific level. The second thing you will notice is that once the box is lifted, his right leg appears to be relatively thicker than his left leg. You can see that before Penn stood behind the box, his right leg's thickness is the same as his left leg, but upon comparison we see a clear difference in the sudden change in thickness of his right leg when he stood behind the box. Keep in mind that from the very beginning, Teller was always inside the box, because the box was never switched out, and was in plain sight of everyone from the moment it was lifted up by the assistant and brought onto the stage. This means, somehow or some way, Teller had the ability to shift his weight off the base of the box to allow the spectators to lift it. If Teller were to keep his weight on the base of this cardboard box the entire time, it's obvious the cardboard box would end up ripping apart. If you haven't figured out how this trick was performed by now, I will now explain in detail. From the very beginning, you will notice that once the box was brought onto the stage by the assistant, it was brought on a platform that had wheels. One could have simply rotated this platform 360 degrees to show that there is no opening on the back side to assist this performance at the very end, or at the very beginning of the performance to sell the illusion a lot better, but he didn't do that because there is a setup done behind the box. Behind the box is an opening, or a window, through which a metallic rod structure is implanted that extends to a seating platform that is at a significant height. You might be wondering why there is no visible vertical rod attached to the base of the platform. Well, the secret lies in a clever design, a vertical metal beam concealed within a semi-cylindrical structure that closely resembled Penn's leg, only thicker. This structure created the illusion of thickness when viewed from the front, making it appear much thicker than Penn's actual leg. When the assistants attempted to lift the box, Penn instructed them to do so at a very specific height. This was because the platform upon which Teller was seated had been set at a specific elevation. Making the box higher would have exposed the fact that there was something hidden inside the box, and this is precisely why Penn insisted that the box not be raised any higher. This is because the inner base of the cardboard box would contact the hidden platform inside. When Penn jokingly commented that the spectators are weak as women, Teller was signalled indirectly to place his feet on the base of the box and slightly stood up. By doing so, he shifted his entire weight onto the cardboard box's base, making it exceptionally difficult for the spectators to lift it. In the grand finale, you witnessed Penn lifting the box and Teller popping out from within. It's important to note that neither Penn nor the cardboard box was strong enough to hold a person when lifted, which is a clear indication that Teller was, in fact, seated on a hidden platform inside the cardboard box with his legs bent. Behind this mask, only the truth remains till we meet again.