Question re: Historic Use of Softened Stone

[kaydii]

Hi Sylvie,

in this video you say the book mentions someone who knew
what type of stone and oven to use.

Youtube transcribes it as "Ferdinand a believer"



I'm curious who this person was and how they would know,
but I can't find any information on "Ferdinand a believer"

Is the transcription correct? or did you say something else?

[The NewEarth Lady]

ferdinand de bellevue

[Atlantis]

Here is an interesting video that presents what seems to be a scientific paper of stone softening. This well done video is thought provoking:
Title: This is How the Inca Built Their Stone Walls
By: Ancient Architects
https://www.youtube.com/watch?v=_KbSFphHCZY