See and avoid just does not work.
Whilst flying on a trip with a couple of mates following another, slightly slower aircraft and on chit-chat, we knew their altitude, we new their position, we new our distance but no way could we see them until 2 miles. Now try that if both A/C have a GS of 160+ each and going towards each other, its less than 30 seconds!
****** it.
NAP