I highly recommend the video https://www.youtube.com/watch?v=60z_hpEAtD8 https://www.youtube.com/watch?v=60z_hpEAtD8 linked from the site above ~40 minutes, an

I highly recommend the video https://www.youtube.com/watch?v=60z_hpEAtD8 https://www.youtube.com/watch?v=60z_hpEAtD8 linked from the site above ~40 minutes, and I get the point of geometric algebra now.