With regards to 1), I remember reading a paper I found on HN not too long ago trying to argue that no, it does not exist. To generalize, any piece of knowledge only exists after it is discovered. Can&#x27;t remember what it is at the moment, maybe someone else knows what I&#x27;m talking about.<p>With regards to 3), I would assume Tegmark means laws of physics which we have not yet discovered, but nevertheless govern what occurs inside a black hole or at the beginning of the big bang. It is commonly believe that with a complete theory of quantum gravity, we will find that the singularities in these situations disappear and the laws of physics don&#x27;t break down.<p>EDIT: Here&#x27;s the HN submission from a few months back:<p><a href="https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=10068676" rel="nofollow">https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=10068676</a>
arxiv link: <a href="http:&#x2F;&#x2F;arxiv.org&#x2F;abs&#x2F;1506.03733" rel="nofollow">http:&#x2F;&#x2F;arxiv.org&#x2F;abs&#x2F;1506.03733</a>