[polygot]

Thanks for the feedback! I'll likely be editing part 1 to include the feedback so far from the commenters as well. If there's a specific statement or analogy that felt especially confusing, please point it out and I'll clarify it in the post.

[t43562]

Sorry for moaning - it's just the usual despair that I feel every time I read a new explanation and fail to understand it. This isn't your fault.