So basically it&#x27;s impossible to know what is &quot;inside&quot; a black hole because it&#x27;s not part of this universe ? But aren&#x27;t black hole formed by stars that collapsed under their own mass ? So black holes are created from objects that belong to this universe right ?<p>I get the idea that black holes aren&#x27;t like a sink. However all that matter or light that get &quot;trapped&quot; into it must go somewhere, in some form .