Do you have any thoughts about the explanation itself? I made it past the first two words, and thought the explanation was fairly reasonable and satisfying.
The last paragraph does not give me warm feelings about Facebook's internal controls on this kind of research:
"While we’ve always considered what research we do carefully, we (not just me, several other researchers at Facebook) have been working on improving our internal review practices. The experiment in question was run in early 2012, and we have come a long way since then."
"While we’ve always considered what research we do carefully, we (not just me, several other researchers at Facebook) have been working on improving our internal review practices. The experiment in question was run in early 2012, and we have come a long way since then."