Black holes: a prediction of theory or phantasy?

Abstract

We argue for black holes do not represent a strict consequence of general relativity.

arXiv commentEq.(5) gives the strict inequality for a velocity of massive particle. It is not correct because the observer on the horizon of black hole is light-like, hence, the corresponding relative velocity reaches the unit limit. Second, the trajectory satisfies the Hamilton-Jacobi equation, that means that the massive particle is always on the mass-shell. The conclusion (page 6) is erroneous