How significant was this guy REALLY?
His biggest claim to fame was that he said black holes emit radiation, and he named it after himself. And he wrote a dummy's guide to blackholes. He is claimed to be the first to attempt to unify general relativity and quantum mechanics, which by the way still isn't even close to being resolved...and probably never will be. There is no friggin way in 2018, with huge hadron colliders and the amount of money and brains being pumped into this research that a unified theory wouldn't have already been discovered if there was one. Finally, he said that galaxies are formed by "quantum fluctuations", a total cop-out explanation that any crackpot could have come up with.
These days theoretical physics is more of a business model than anything, a whole lot of over-educated grant-begging nerds with no hope of ever discovering anything since all theories of the modern world will be discovered with supercomputer modeling rather than human minds. This guy was just an advertisement for this business.