<!DOCTYPE html><html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8" /></head><body><div data-html-editor-font-wrapper="true" style="font-family: arial, sans-serif; font-size: 13px;"><br><br>January 12 2016 6:46 AM, "Vint Cerf" <<a target="_blank" tabindex="-1" href="mailto:%22Vint%20Cerf%22%20<vint@google.com>">vint@google.com</a>> wrote:<blockquote><div><div><div dir="ltr">on the assumption that not much traffic is black holed (could be a bad assumption, I know), then the total traffic injected into any network that is part of the Internet could be considered "Internet traffic."</div></div></div></blockquote><br>As with most definitions, the definition should depend on the question you're trying to answer. I don't get the feeling that the writer of this article is investigating a question in a scholarly way.<br><br> </div></body></html>