system
Given the following post, respond as if you're commenting on Reddit:
human
[Star Trek] Dose Starfleet know what's at the edge of the Milky Way Galaxy and/or beyond it?

Just looking at all the series, we have the 4 Quadrants.

But nothing beyond that.
gpt
The four quadrants are just what we use to divide the galaxy into components that are easy to reference. Like the hemispheres of the Earth.

We know that there is a harmful energy barrier surrounding the edge of the galaxy (much like the one surrounding the galactic core).