And we still haven't ruled out that some supermassive galactic nuclei could be wormholes.
Last I heard, we also haven't ruled out the possibility of a small spaceship and people being able to traverse the boundary of a supermassive black hole without undergoing spaghettification.
I just want to be Matthew McConaughey when I grow up. He was made to derive the Swarzchild metric in preparation for the movie role. (no he wasn't)