http://news.ycombinator.com/item?id=4849300 http://news.ycombinator.com/item?id=4849300 to beat a dead conversation past the point of anyone caring other than

http://news.ycombinator.com/item?id=4849300 http://news.ycombinator.com/item?id=4849300 to beat a dead conversation past the point of anyone caring other than me... if you looked at the minute by minute activity, an honest effort to take a class should produce a fairly detectable minute by minute signature for example, someone answering the questions who hasn't watched the whole video, unlikely to be an honest effort there are enough data points in there, that detecting cheating should really be a question of mining the right data points http://news.ycombinator.com/item?id=4413474 http://news.ycombinator.com/item?id=4413474