Yes, we can. Yes, we did. At this time, there at least three plausible theories, the current favorite being the ramp and pulley method. The pyramids lie only about a mile from the nearest quarry, and the slabs from which the stones were cut are in plain view, as are the paths on which the stones were dragged.
Bad science and lack of knowledge are a terrible combination.
Ummmm, it appears that you still can't.
Tell me again...which "plausible theory" is the explanation??