Risposta a @enricorollo

If you find someone who does it, or you want to discover it, do it for me, because you probably have the Nobel Prize for Physics. What's inside a book? It's one of the mysteries that is all about the most powerful elements of science, because you don't know. You know that the inside is a point of densities and of gravity infinite, a bit gravitational, that is, this singularity, this point of gravity, in which the laws of physics go in vain, to how it is structured, literally the inside of a book. It's a cake, it's very difficult to imagine, and we don't know it with certainty. We can hypothesize, then, no, that is, then, the time between the book and the book is closed. No, that is, if one of the outside sees you close to the book, I would probably see you locked up like this, on the horizon of the events, for billions of years, perhaps more or less, because who outside sees you, will be slow, so you would always see you locked up in the book. You're entering, for you, the time is normal, so you, at the very least, will see billions of years of the universe that are very fast, you would see stars dying in a few moments, then it depends, because, as it is, once entered, the light that comes, will be all mixed up, so you don't know if you know how good it is that you are looking at it. But you don't know what it is that you are looking at the book, it's a mystery, you can only do the hypotheses.