I suppose if nobody says anything, nobody knows anybody is there, so there's no risk of a collision, until of course the windscreen fills ..
That's the kind of reasoning and sensationalism that I'd expect from ... Dick.
If you're assuming there's no risk of collision because nobody's said anything on the radio, you're flying in blissful ignorance. But I anticipate you were being deliberately silly to make a point.
BuzzBox is a breath of fresh air.