[development] function node_page_default

Hello, I've been reading through the node.module code for a project and came accross the node_page_default function. As far as I can tell this is used for the traditional list of nodes for a drupal homepage. The documentation page is here: http://api.drupal.org/api/HEAD/ function/node_page_default My question is, couldn't this function be made to use just one database query? as it stands it uses node_load() for every node that needs to be displayed on the page so if you want to display 30 teasers, that's 30+ database hits. Am I missing something here? Keizo