I see that every post you click on it will be loaded from beginning (or it just looks like...).
Is it possible to allow authors to select which posts (select box in post editor) will be cached (somewhere...)? Many posts are static, and most probably they will not be changed in the future (specially those where comments are turned off...).
And all visitors who want to see these posts will get post content from memory, not from database.
I think, it will speed up blog rapidly...