Regarding the readme, I think it's clearer if you point out that it actually doesn't even stop at a '3 dimensional perspective projection of' - it's 2 dimensional with the third suggested by perspective drawing and the rotation.
Then it goes on:
> Well, imagine you're a 2D being, you live in a flat universe, in a plane, you see in 1D (a line), then you try to visualize a 3D object, so your 3D friends intersect a cube into your line of sight, but you only see an infinitesimal slice of it, you can never see it fully.
Well, we kind of are, in looking at such demos we're 'living' in a flat computer-screen universe. To me at least it's easier to grasp as 'consider how 3D things from real life need to be represented in 2D on a computer screen' than it is to 'imagine you and everything in your life and your whole experience of the universe is 2D'! I can hardly conceptualise that at all!
Then it goes on:
> Well, imagine you're a 2D being, you live in a flat universe, in a plane, you see in 1D (a line), then you try to visualize a 3D object, so your 3D friends intersect a cube into your line of sight, but you only see an infinitesimal slice of it, you can never see it fully.
Well, we kind of are, in looking at such demos we're 'living' in a flat computer-screen universe. To me at least it's easier to grasp as 'consider how 3D things from real life need to be represented in 2D on a computer screen' than it is to 'imagine you and everything in your life and your whole experience of the universe is 2D'! I can hardly conceptualise that at all!