The only explanation so far is this galaxy has experienced no collisions or interactions with other galaxies since the beginning of the universe. It’s held together by gravity but gas pressure keeps it from forming overdensities that lead to star formation. Once star formation begins, however, it triggers more of them like a chain reaction, sort of like setting a forest on fire. So this is a pre-starburst galaxy waiting to happen, or so they think.
Yeah. Caught my attention. Unusual topic. Something new to ponder.
It would be interesting to see what it would look like with Hubble or Webb images of it.