My experience has been the opposite. More close encounters with comm
than without. But that only is good for the last 40 years. I think the comm
or lack of it is not a factor at all. Situation awareness seems to be the
bigger player.

In article , wrote:
jsmith wrote:

Teaching them initially to fly without a radio teaches them to look
outside and scan for traffic.
It's the fools with radios that think just because they broadcast over
the airwaves that they have the right of way and everyone should let
them play through.

And my experience is that assuming that see and avoid will keep you
alive is one path to validating Darwinism.

Ron Lee