This was very clear to me. Thinking about the last post and your explanation of causation, I am starting to understand The idea that you're getting at. I especially your point that the two velocities after the collision are perfectly correlated. Of course I know this, and I know a lot about statistics. Most of the statistics I use are based in algebra: I used Analysis of Variance in my PhD work. But I'm starting to see where you're going with this. Look forward to more posts about this.
This was very clear to me. Thinking about the last post and your explanation of causation, I am starting to understand The idea that you're getting at. I especially your point that the two velocities after the collision are perfectly correlated. Of course I know this, and I know a lot about statistics. Most of the statistics I use are based in algebra: I used Analysis of Variance in my PhD work. But I'm starting to see where you're going with this. Look forward to more posts about this.