NED (New Era Dianetics) for OTs (Operating Thetans). New Era Dianetics is Dianetics on the wholetrack, your last 75 trillion years. NED for OTs is abbreviated NOTS, and as this is done solo, with the soup-can electrodes of the E-Meter in one hand so the other is free to write up the session, it is then called Solo NOTS.