I heard someone mentioned a cube and square. We can find the area and volume of a cube/square by various formulas but the style of those may be different. But it works, so shouldn’t it be true because volume and areas exist in every kind of 2-D and 3-D shapes imaginable?
This entire post.
I've quoted here because I want to point out we were discussing assuming as if it was all correct, but I like your ideas.
The cube/square scenario was describing perspective, so if you look at a cube face on it looks like a square right? But if you have had and can not have any other view of the cube other than face on you would assume it was simply a square and had no evidence to prove otherwise .