Would you mind expanding a little. Google has led me to a brand of window maker, and to of course, black hole event horizons but I am not clear on the specific egress horizon.

I can guess what you intended but would be interested in the specifics.

Egress = output; Horizon = the border of control, where packets are "released to the world"

I assumed that egress horizon was some new black hole phenomenon with interesting properties about not needing a core/ central point.

It's a cool phrase though so we should definitely use it

Hah, maybe I should have just taken the simpler road and said it was just a play on "event horizon."