Interesting; if the paper finds general acceptance, it'll be fun to watch a new flurry of activity. The fairly recent controversial concept of "firewalls" has reinvigorated that subfield of physics.
Whether black holes exist or not, there's something really dense at the center of our galaxy. It's a challenge to come up with a consistent non-black-hole explanation for the observed motion of stars at the galactic center.
This is why I love astrophysics (and the scientific method). When you find something conclusive (assuming the paper is accurate), and it causes you to re-think what you thought you knew about the universe, it suddenly becomes larger than you ever believed possible. I hope this paper is true - since it solves the information paradox.
