Meanwhile, what's the physical evidence to support how a funerary motive was able to create the causeway? Or Houdin's spiral ramp? Or huge construction ramps? Or any other method of constructing such a beast?
Firstly, stop continuing to derail this thread with irrelevant questions which only prove that you have not understood the stated premise that causeways are links between temples and are related to the path of the Sun.
Secondly, the use of a "construction ramp" for the Pyramid of Khufu was completely unnecessary as materials could have been more easily moved up the gradual incline to the north of the pyramid.
Pyramid of Khufu 1883