As I recall, Gen. Rel. continues to explain all directly observable phenomena within limits of resolution. That's damn powerful. As for 'black holes', well ...

As I recall, Gen. Rel. continues to explain all directly observable phenomena within limits of resolution. That's damn powerful. As for 'black holes', well ... believe what you choose. A prof. once told me that Einstein 'wasted 30 years' looking for unified theory. By that standard, so did Hawking I guess.