Comment by hunterpayne

It should be pointed out that the math of spinning black holes which Einstein needed to reconcile GR and QM wasn't discovered/invented until the 1980s. And we still haven't really checked to see if he was on to something. A big part of this is that the young have the energy to spread their ideas. The old often don't. That has as much to do with these things as being right or "on to something".