2000000/20=100000 a year
100000/365 days =273.9726027397 per day
2 million blocks works out to 274 blocks a day for 20 years.
At 10 or 11 blocks per hour, using multiple crews at the site, plus more numerous involved in the block production crews (assuming they were quarried), it’s not some great leap of faith.
Scaling production is also how the work crews were fed. The actual bakeries and whatnot were excavated in the past 20-25 years. A large number of ordinary bakeries were built nearby to support the construction.
Someday, long after I’m room temperature, real scientists will be permitted to study Egypt without its current, hateful, biased overlord, and perhaps the truth will be revealed.
Until someone can demonstrate a mere 10-meter-tall pyramid built at that rate of construction, I have a bridge for sale.
Breweries for the production of beer must have been impressive. All beer and baking done by women. They ate a kind of pizza of flat bread, cheese onions and meat The beer was endless too. You can get a lot done with a whole population of people behind you. Egyptians were good at organization if nothing else.
Where the workers for the restoration lived and worked.