Can I just put a bit of perspective on this for my flying colleagues who have never worked a scope. They may think that it’s great in the UK the states etc etc, but have they not noticed how often they are handed off to a new freq when in these areas of the world. The main fact of the matter is number of aircraft handled per controller. I’ll put money on it that in Europe the aircraft per controller on a single frequency is probably less than half what it is here. Now ATC need to keep the picture (Hopefully) and the less aircraft you have on a freq at any one time the easier to keep the picture and sound oh so calm. The most amazing piece of airspace for me is (believe this or not) the Bombay TMA. There you have one controller controlling a piece of airspace 40NM radius with no proper holding fixes and a shed load of aircraft all wanting to do there own thing. That there aren’t more incidents there is truly amazing. Just as a exercise next time it is busy try and work out what call sign belongs to which TCAS target and then work out where you fit into the sequence. Good fun and great for your big picture situational awareness of everybody.