Page layout and loading information

Typical human scan patterns suggest upper left to right center then bottom left when scanning a website. Page layouts should incorporate logos, important information and calls to actions in these areas to increase ease of use and click through rates. With this in mind, pages should load the same way. By using our current standards of loading header, then content, finally left menu and footer; we not only move relevant content for search engines up in our code (increasing SE friendliness), but also follow human scan patterns. Very interesting - give your thoughts.