[surely_you_jest]

I read that someone did interview lots of people in his class and no one remembered him. It even seemed unusual to the Columbia grads.

Assume, for the sake of argument, that he didn't attend classes (perhaps only went for exams), and that he was not registered as Obama but was registered under some other name. What, if anything, does this change in terms of avenues of inquiry?

[kabar]

I am sure he attended Columbia. The University confirms it. He was there for only two years after transferring from Occidental. Occidential had an exchange program with Columbia, which I understand allowed students to transfer there.

Obama was known to some at Columbia, if you believe this May 2008 account, which may have been made up to provide some normalcy to Obama.

Personally, I think Obama has always felt like a stranger in America, which is why most of his friends in college were foreigners. He identified more with them than native born Americans. He had Pakistani roommates at Occidental and Columbia. I suspect that Obama was into drugs and radical causes. There is the very real possibility that he met Ayers at Columbia. It could be the reason why Obama headed to Chicago. No one knows why he went there.