# Einstein and the existence of Black Holes

I have seen some papers claiming that Einstein said there is no Black Hole in the real world, here is a phrase from Einstein himself, see this arXiv preprint:

The basic result of study is the distinct understanding that there are no Schwarzschild singularities in the real world. Thought the offered theory considers only such systems, in which particles move by circle trajectories, we have to hardly doubt that the investigation of generic case will lead to the same results. The Schwarzschild singularity is absent, because the matter cannot concentrated in an arbitrary way;otherwise particles composing the clump will reach the speed of light.

Why did Einstein say the particles composing the clump will reach the speed of light? And why haven't other physicists accepted his argument?

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Note that Einstein died before any of the now-standard cosmological datasets were gathered, depriving him of a ton of knowledge! – Danu Sep 2 '14 at 13:08
As a note, Einstein apparently said this in 1939. Back then, we were somewhat lacking in the experimental search (or lack of it) for black holes! – HDE 226868 Sep 2 '14 at 13:12
There is also another good paper: arxiv.org/abs/1101.0601 – user55867 Sep 2 '14 at 13:38
The preprint you cite seems to display some basic misunderstandings about GR – Holographer Sep 2 '14 at 14:26
What misunderstandings?, however This is not the only paper, look at Abhas Mitra paper on the subject, he has also supported the preprint that i cited in his numerous works, also look at this, this also would be a good discussion, – user55867 Sep 2 '14 at 14:38