Here is a video https://www.youtube.com/watch?v=tX4H_ctggYo https://www.youtube.com/watch?v=tX4H_ctggYo and the associated HN thread https://news.ycombinator.co

Here is a video https://www.youtube.com/watch?v=tX4H_ctggYo https://www.youtube.com/watch?v=tX4H_ctggYo and the associated HN thread https://news.ycombinator.com/item?id=22282452 https://news.ycombinator.com/item?id=22282452 that provide some more background on GA and its applications. I think you're generally right that GA is a rebranding of concepts we already knew about, however representing them in a uniform manner seems like a useful thing to do. The at t=4083 in the video they show some interesting examples of projections, rotations, and other geometric operations that can be done quite simply https://www.youtube.com/watch?v=tX4H_ctggYo&t=4083 https://www.youtube.com/watch?v=tX4H_ctggYo&t=4083