Was the talk about 3D symbologies in the first paragraph there to entice me to hunt for it in the page? I searched but couldn't seen any mention of it let alon

Was the talk about 3D symbologies in the first paragraph there to entice me to hunt for it in the page? I searched but couldn't seen any mention of it let alone a putative image of a 3D barcode, what it looked like, how it be used, the need for it.