Explain CPU Burn with Caching Plugins Better

[joshkoenig]

Per #9

I think there needs to be more explanation of Batcache and Varnish before talking about Joe's research. You make the case that loading the application will require CPU cycles, but never connect the dots that Batcache loads the application. As I re-read this, I actually think that bringing Batcache into the conversation is a big red herring. You make the point that loading the application causes more CPU use. I think that could lead into "The good news is that the wider...". The Batcache detour is confusing at this point in the article.

Makes sense.