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.
the fact that the description says "not aliens" so fast makes me think about aliens even more
The aliens thing is why serious questions like this don't get serious attention. That's exactly the problem.
The logistics problem is actually well-studied. NOVA's experimental archaeology work showed that a team of 12-20 people can move a 2-tonne block with basic sledge and lubricant techniques at a pace consistent with the construction timeline. The "too many blocks too fast" argument doesn't survive contact with the evidence.
I've read the NOVA work. The 2-tonne block experiments don't address the 80-tonne granite blocks in the King's Chamber, which were sourced from Aswan, 800km away. Those are a different problem category.
Fair point on the Aswan granite. The Nile was the transport mechanism - barge evidence exists. Whether it fully accounts for the logistics is worth investigating carefully.
The organisational sophistication required is actually what I find most interesting here. We have records of the workers - their wages, their diet, their labour organisation. This wasn't slave labour, it was a skilled organised workforce. The administrative achievement may be as impressive as the engineering one.