In the “Warmup” section, I would make the first paragraph (dealing with visualizing S2 in R2 (space) x R (time)) not a paranthetical, and remove the “If the following paragraph is too hard” part. I expect most people who may read this (at least those who will benefit the most from it) will find the exercise of visualizing an object they are already familiar with a good intuition pump for using the technique to explore a less familiar conceptual space, so that section should be treated as a main part of the text.
I’m glad you wrote about this topic, since it is something that people often incorrectly think is not possible to do, and I may share more thoughts once I have finished reading this.
In the “Warmup” section, I would make the first paragraph (dealing with visualizing S2 in R2 (space) x R (time)) not a paranthetical, and remove the “If the following paragraph is too hard” part. I expect most people who may read this (at least those who will benefit the most from it) will find the exercise of visualizing an object they are already familiar with a good intuition pump for using the technique to explore a less familiar conceptual space, so that section should be treated as a main part of the text.
I’m glad you wrote about this topic, since it is something that people often incorrectly think is not possible to do, and I may share more thoughts once I have finished reading this.
You’re right, fixed, thanks. (Post was written hastily, since it was a priori unlikely I’d finish it.)