Modern archaeologists don’t think the single giant ramp was how the pyramids were built. The ramp would have to be like 2km long to make the angle reasonable for getting blocks to the top and there is no evidence of a ramp so large.
You also can’t use a spiraling ramp to construct the pyramids as exact as they are since you’d need to see the corners as you build them.
Houdin posits that they used an external ramp to about 1/3 the height and then internal ramps for the remainder. This reduces the amount of material needed and keeps the corners visible.
Modern archaeologists don’t think the single giant ramp was how the pyramids were built. The ramp would have to be like 2km long to make the angle reasonable for getting blocks to the top and there is no evidence of a ramp so large.
You also can’t use a spiraling ramp to construct the pyramids as exact as they are since you’d need to see the corners as you build them.
Houdin posits that they used an external ramp to about 1/3 the height and then internal ramps for the remainder. This reduces the amount of material needed and keeps the corners visible.
More likely left-right ramps similar to serpentines.