Cory West, engineering manager for Facebook photos started off the second morning session with a discussion about social photography. Some time back he was interested in the relationship between memory and quality of life. After coming across various articles about the way that we remember things (it turns out that as a result of having instant access to information, we've begun to optimize our memories by not remembering facts in order to better remember how to FIND facts), he decided to do a social experiment with his photos. He photographed 7,000 photos at 27 different social events and posted 950 curated shots on Facebook. He received 880 incidents of participation on 400 of the 950 posted photos. What he found surprising was that 55 percent of the activity was from people he didn't know. When he looked at the data, the numbers did make sense, as he had many more friends of…