author=assert_queries(3){Author.find(author.id,:include=>{:post_about_thinking_with_last_comment=>:last_comment})}# find the author, then find the posts, then find the comments
author=assert_queries(2){Author.find(author.id,:include=>{:post_about_thinking_with_last_comment=>:last_comment})}# find the author, then find the posts, then find the comments
post=assert_queries(3){Post.find(post.id,:include=>{:author_with_address=>:author_address})}# find the post, then find the author, then find the address
post=assert_queries(2){Post.find(post.id,:include=>{:author_with_address=>:author_address})}# find the post, then find the author, then find the address