Alot of things debunk this theory that should not have been executed, 1, as TheAllAmericanHoneybadger said, Holograms did not exist during 2001, it doesn't even exist now. And even if they did, which they don't, at the time, they would not be powerful enough to replicate a whole plane 4 times. And another thing that debunks this theory is that in the definition of a hologram, it is an image formed by lasers or a coherent light source, which means the government would have to have a huge projector, which would be impossible to hide, and a projector at that time were not that advanced, or that big. And if they were holograms, it would faze right through the buildings, as they are only light sources, not objects. And as stated, even if it did exist, it would not be that advanced. And if they are holograms, why do we have info of the people who died in the planes? Why do we have info of the hijackers of the plane? Why did Osama Bin Laden accept responsibility, claiming they did it? You lack ny braincells in you, and you have no sense whatsoever.
Sigh... When did common sense become so rare these days.