Originally Posted by Duchess_Driver
the only solution is a good, solid (well taught) and continual lookout.
The only flaw with this is that you can't look behind you, it requires both parties to be keeping a lookout and there are blindspots on both sides.
Situational awareness is more than just using the eyeballs.
I'm not familiar with the UK way of doing things but get the impression that there are bottlenecks for GA aircraft dealing with controlled airspace and perhaps there is too much reliance on ATC to maintain separation?
Personally, I have been of the opinion that traffic avoidance tech is a good tool to help eliminate someone else's mistake from reaching you - possibly naively so.