Found my blogPR update rules, my blog, more than 30 external links, and has added a new article, so until the time when google's PR update, PR promoted from 0 1, this is not a law of google.
I am confused of what you are saying here! Were you trying to say that your observations on your blogPR increase(from the stats you found) are against to Google's PR algorithms? Brief it again...
I mean, my blog has 30 external links, a month or so, PR update from 0 to 1, the other is not outside the chain of blog is not updated
I think what he is trying to is that he figure out (a little) the Law of Increase in Page Rank. But, he is saying that it is not really or exactly the Law according to Google. That is how I understand his post.
I understood that you had not got equal benefits to your web-pages thought they are from single website, if my assumption is right, you will need to understand that Google's PageRank is applied to individual page not to entire website/blog. Hence you don't see equal benefits.