It's a delight to see you use Cannoli's playbook and pull crap out of your ass, shift goalposts, and do basically whatever you can to hold on to your position.
Walls can be made of many materials... Seriously? That is your argument?
It's a constant habit of yours. Taking a perfectly civilized theoretical conversation and turn it into an insulting "how only fionwe can be right" conversation.
I've stated multiple times that I don't think there is anywhere close to enough evidence to prove a point either way yet you continue to behave as though I've stated that I'm somehow proving a point to 100% truth.
Learn to behave like an adult rather than a spoiled child.