Not quite sure what you mean - he's actually right. Schrodingers Electrons are in neither an on or an off state until you take the battery out. Then you can see the PCB and as we know from quantum theory act of obsevation has and effect on the quantum state of electrons - so just by seeing the PCB you actually reset the electrons in the device and they are no longer confused. (Please make sure you hold the N900 horizontal when taking the battery out though otherwise the electrons tend to drain out of the battery terminals and onto the floor). As an aside all of these issues can be avoided by encasing electonics in clear cases. It's why the original Imac was see-through - Apple had a really issue with confused electons at that point although they now seem to have it under control.