Adam Lisagor is here to answer some important questions about technology. Today, one guy asks how long it would take to download an HD movie if he had a gig. The answer: the time it takes for Lisagor to eat a cookie; in almost no time, he downloads "Captain America: The Winter Soldier" on his laptop and enjoys a chocolate chip cookie. That is fast indeed. Right now, CenturyLink is rolling out 1 Gig Internet service near you.