I don't think you're a silly billy. It's a legitimate thing to confuse, because they use the same words. Ray casting and ray tracing used to be used interchang

I don't think you're a silly billy. It's a legitimate thing to confuse, because they use the same words. Ray casting and ray tracing used to be used interchangeably (see Wolfenstein 3D) until ray tracing became a different thing. Mini computers used to refer to merely fridge sized computers. I'm sure theres more examples