Two weeks ago I saw three airplanes in 3/4 mile echelon on each other all racing to one airport. It gets even worse when you have a ceiling and everybody gets compressed down to two VFR altitudes.
re: very happy to have TCAS
I’ve not flown with the comfort of that! Does it require that both aircraft have the system for it to work?
I remember years ago a device that could sense the presence of a strobe from a mile or so away. It looked for the frequency of the light from a strobe. It’s apparently different enough from other lights to make it pretty selective. I saw them being marketed for ultralights. Talk about a bunch of aircraft all doing their own thing!
One company had a strobe that was designed to be more visible to the systems that looked for strobes.
I have not seen anything on this in years or even heard about it. Could be that it was one of those inventions that looked better on paper than in reality!