To get started:<p>1. Make some edits in either text box<p>2. Click the blue arrows to propagate operations<p>I'm not completely sure how to interpret the line graphs at the bottom, though.
IIRC, OT was considered too complex in practice , and products like Google Docs ended up just using fast networks to make collaborative editing effectively synchronous. Similar in spirit to how they solved the problem of eventual consistency (BigTable) by building a globally synchronized network of clocks (TrueTime/Spanner)