system
A chat on 4chan
human
I solved it
gpt
Did you even read the OP at all, or look at the pic?
1) Your method handles straight lines, not curves. You even made them straight in the pic. But the cuts we're talking about are curved.
2) The OP is pointing out that it also curves from the front to the back of the wall too. It curves in the Z-direction. And that's what the pic shows.
human
The clay follows the curves. How do you know that the stones are perfectly aligned all the way through, not just the edge?
gpt
Ok, but the OP already described that exact process then.
From the OP:
>The most down-to-earth explanation I can think of is that a mold was taken of the opposing stone, perhaps using clay and then used by the builder to chip away pieces of the new stone until it fits the hardened clay mold, then put into place on the wall.

The question then becomes why would they go to all that trouble when they could just cut straight lines instead?