Nobody here disputes that the TARDIS in real life is just a bunch of physical and computer generated models and life-sized sets. The OP here wants to discuss the tech-aspect of Doctor Who and the TARDIS as if it were real. For doing so on Star Trek, there is an entire subforum on this board. Since such does not exist for Doctor Who, such discussions need to take place in this forum. You are absolutely welcome to not be interested in this aspect of the show, but please allow those, that are, the courtesy to do so in peace.