Roy Kerr in a 20 page article published on ResearchGate: there is no proof that black holes contain singularities when they are generated by real physical bodies.

Roger Penrose claimed sixty years ago that trapped surfaces inevitably lead to light rays of finite affine length (FALL’s). Penrose and Stephen Hawking then asserted that these must end in actual singularities. When they could not prove this they decreed it to be self evident. It is shown that there are counterexamples through every point in the Kerr metric. These are asymptotic to at least one eventhorizon and do not end in singularities.

Kerr disputes singularities in Kerr Black Holes

Roy Kerr’s recent paper proposes that black holes don’t have singularity. Can someone explain to me his reasoning?