How does that anomaly (which is solved by dark matter) speak against a supermassive black hole?
The anomaly speaks of an opposite motion of the Solar System which provided the celestial law of motion around a gravity center. Inserting hypothetical "dark matter" doesn´t rescue anything else but the falsified gravity law. "Dark matter" hasn´t been found and it never will.
Has this hypothesis of yours (or whoever you got it from) been independently studied, calculated, tested, and peer-reviewed?
I got this hypothesis from reading the numerous cultural Stories of Creation.
The Garden of Eden is supposed to be on Earth. After all, the source names four rivers that pour out from it, two of which still flow (the Tigris and Euphrates.)
If you have had any knowledge of the Milky Way Mythology, you would know that the Milky Way contours are mythically mentioned as rivers.
There's no suggestion in that entire story that it takes place in the Milky Way. Heck, I don't think the Milky Way is mentioned at all in Genesis.
There are lots of other stories of creation than Genesis.
...uh, dude? You just cited a source that directly supports the notion of a supermassive black hole.
No, the astronomers in the article did use this term. I don´t belive in this speculative idea.
Also, I'm not sure you understand something. Nobody's saying that stars can't form there. However, not all stars formed there. There's plenty of star formation well outside the Galactic Core. For example, the Eagle Nebula is one of the other arms, not the Core. Plus, we've also gobbled up stars from other galaxies that we've obsorbed or are currently obsorbing.