User blog comment:The Crimson Eagle/Assassin's Creed: Revelations Review/@comment-5336493-20120726175444/@comment-5388838-20120726180734

Actually, 16 mentions separating Altaïr as well as Ezio.

"That, is a Sync Nexus. Find it, and the Animus can separate Desmond from Ezio and Altaïr and send you home – back to your body."