Upon reading, I thought it was going to be one of those e-mails asking you to give out your credit card number and such, which I get all the time, but no. Hmmmmm. Maybe the guy is crazy, looking for attention, or both. He also failed to tell you what time he was supposedly from......any idiot knows if you're pretending to be a time traveler, you have to tell them what time you're from!
And what's so interesting about visiting 2003? Why visit this time? Nothing exciting is going on....now at least.