> you move on, searching for the true meaning Which turns out to show up when you go beyond three dimensions. In two and three dimensions, numerical coincidenc

> you move on, searching for the true meaning Which turns out to show up when you go beyond three dimensions. In two and three dimensions, numerical coincidence let you identify different grades of operation. In 3D space, i, j, and k are unit vectors...and unit bivectors. As soon as you hit 4D you have to separate that out, and things get a lot clearer. This is why people keep harping about geometric algebra.