# User:Swen

The world is full of puzzling questions.

One of them ist "Do black holes really exist?" and "How do they look like?".

I have my doubts!

If it takes infinitely long for an external observer to see particles falling into an event horizon, how can one say from the outside, that the particle has fallen into the black hole?
If the light, emitted by an infalling target gets infinitly red, how can I still determine its location? (where is Schrödinger's cat when you can´t see it? Infinit redshift at the event horizon means, you know its momentum exact. Heisenberg´s uncertainty principle tells me that the infalling targets wavefunction must be smeared out throughout the entire universe! This should apply also to its energy contribution to the gravitational field. )
How are black holes related to the big bang?
How are black holes related to the dark matter and dark energy?
Shouldn´t supermassive compact stars be in an equilibrium with the cosmic microwave background radiation?
Shouldn´t be there a halo of electrons and positrons surrounding supermassive compact stars when the cosmic microwave background radiation is gravitationally blueshifted to more than ${\displaystyle kT=1.022MeV}$? Do neutrinos form a similar halo of quarks?
How can particles hitting the surface of a supermassive compact star create a not yet existent event horizon in finite proper time? (What has to be first, the chicken or the egg?)

If you are puzzled by the term computerprogram as such.