"I will give more justification for this later,"

Did people complain about this?
I'm sure you paid more attention than I did, but I only remember this complaint on part 1, the part that was better received. Moreover, I only remember you saying this in part 1. I think the more popular complaint about parts 2 and 3 is that they were not central to Taubes and not interesting topics. But those complaints might have been avoided by having a single post.