There's no way ancient Egyptians built the pyramids without help we don't understand yet

Not aliens. I want to be clear about that upfront because this question always gets dismissed for the wrong reasons. What I mean is: the logistics as we currently model them don't add up. The quarrying, transport, and precision alignment of 2.3 million blocks — some weighing 80 tons — within the reign of a single pharaoh, using copper tools and wooden sledges, strains credibility. Either our estimates of available labor are wrong, our understanding of the tools is incomplete, or there's an organizational or technological solution we haven't reconstructed. That's a legitimate research question.