On November 30, 2003, Zuckerberg told Cameron Winklevoss in an email that he did not expect completion of the project to be difficult. Zuckerberg wrote: "I read over all the stuff you sent and it seems like it shouldn't take too long to implement, so we can talk about that after I get all the basic functionality up tomorrow night." The next day, on December 1, 2003, Zuckerberg sent another email to the HarvardConnection team. "I put together one of the two registration pages so I have everything working on my system now. I'll keep you posted as I patch stuff up and it starts to become completely functional." On December 4, 2003, Zuckerberg writes: "Sorry I was unreachable tonight. I just got about three of your missed calls. I was working on a problem set."