Brother, do you refer to my posts?
I think not.
Isotacy is evidence. Mountain masses deflect. They are distributed evenly and perfectly on earth which stabilizes the earth. The roots of the mountains beneath the surface beneath the surface of the Earth are several times deeper than height of what appears above the surface.
There is no error in the Qur´an. This is a part of what mountains do, as they are described in other verses as well. This all is fit into modern science.
Proportional size of Mountains:
And they ask you concerning the mountains, say; ‘My Lord will blast them and scatter them as particles of dust.
‘Then He shall leave it as a level smooth plain.
‘You will see therein nothing crooked or curved’”
Modern science approves.
And the earth We spread out, and placed therein firm mountains”
And We have placed on the earth firm mountains, lest it should shake with them”
Have We not made the earth as a bed,
And the mountains as pegs?”
The description of the mountains as “firm” and the statement that Allah, may He be exalted, “fixed them firmly” means that they are stable.
All this is approved of modern science.