Works quite well on a 90 degree convergence.


\. Then it was like a light bulb went on and
I realized that the best course of action was to head straight for the
point in the sky where he is.

This is the NASCAR version of crash avoidance. Head for where the spinning
car is now because he probably will have moved by the time you get there.

I guess this will work OK for aircraft provided you are not converging close
to head-on.