Ready
Water and support
The water would have needed to reach the workers, village, and worksite every day. See how delivery creates a workforce and a support requirement of its own.
Open explainerInteractive explainers
Follow the calculations through water, timber, rope, copper, workers, and granite transport. Each explainer shows a requirement, the evidence and assumptions behind it, and the consequences for the rest of the build. Several operations fail their own tests. The complete construction plan fails too.
Audit standard
Boxed canyon
The boxed canyon holds every narrative to the same standard as the model: the rules of physics. A method can change, but it cannot delete both a function and the burden that function carries. The burden must still be satisfied.
Interactive explainers
Open an explainer to see the calculation and its source trail. Where a control is available, change the assumption and inspect the result. A favorable change receives its benefit, but the remaining work still has to be done.
Ready
The water would have needed to reach the workers, village, and worksite every day. See how delivery creates a workforce and a support requirement of its own.
Open explainerReady
The Palermo Stone records forty ships carrying cedar. The model requires enough timber to fill about 1,204 such shiploads. Even with half supplied locally, about 602 shiploads would still have had to arrive from abroad.
Open explainerReady
Enough rope to rig a first-rate warship, every 2.98 weeks. See what replacing the rope used for hauling would have required in fiber, land, workers, and transport.
Open explainerReady
Every strike costs a little copper. Where would the metal have come from to keep repairing and replacing the tools used for quarrying throughout the build?
Open explainerReady
A national population is not an available workforce. Follow the calculation through farming, construction, families, settlement, support work, and replacement over time.
Open explainerReady
The river journey could not have begun until an 80-tonne beam was loaded onto a hull that would not hold still.
Open explainerReady
The same workers could not have served every operation at once. Test the national labor requirement against the available pool and see what changing the assumptions resolves—and what it does not.
Open explainerHow to read these pages
Each page shows what the sources report, what the model assumes, what it calculates, and what work remains unresolved. A number taken from a historical record is not the same as a number chosen for a test. Readers should be able to tell the difference.
01
Use the source references and technical details to see where an input came from and what the calculation does with it.
02
A different value must receive its actual effect. Check what improves, what becomes more demanding, and which findings remain unchanged.
03
A job still has to be done even when no reliable estimate has been entered for it. Leaving it out of a total does not supply the workers or materials, or show how it could have been completed.
Replacement test
A different method may reduce an existing requirement. It must also account for the work it would have created: construction, operation, maintenance, materials, people, and support. Compare complete methods, not a benefit from one method with the costs left behind in another.