Schwarze Löcher geben uns Rätsel auf. Ich bin kein Kosmologe und beschäftige mich mit einem philosophischen Interesse populärwissenschaftlich mit schwarzen Löchern. Sie markieren eine Grenze unserer Vorstellungskraft. Die Gravitationskraft beeinflusst Raum und Zeit, sagt die Wissenschaft. Konzentriert auf einen Punkt verdichtet sie Materie auf ihre reine Substanz, quetscht Atomkerne und Elektronen zusammen zu einer Masse (Atome bestehen ja zum wesentlichen aus Leere). Diese Masse zieht mit ihrer unglaublichen Gravitationskraft alles an und biegt und verzerrt Raum und Zeit.
The black hole is surrounded by a threshold, an event horizon. Once this is crossed, there is no turning back, i.e. light is no longer reflected but absorbed. So we cannot see what is happening inside. Something similar seems to apply to time and space. Although black holes can move through our space-time, they themselves are virtually outside of it - which is really beyond our imagination. There seem to be a lot of them in our universe. Most galaxies seem to have a super large black hole at their center.
The limits of imagination
The physics of black holes poses countless puzzles and paradoxes. Above all, however, they reveal a limit. Our thinking is linear, i.e. our sense of time is in the now, which extends over a moment. It is situated within a temporal sequence, namely a past that preceded it and a future that is anticipated and will occur. The same applies to space: our imagination tells us that we can, in principle, move infinitely far in all directions within (3-dimensional) space.
These assumptions are wrong. They are nullified by black holes. For Kant, space and time were therefore categories a priori. In other words, they determine our perception and are not themselves the object of our perception; we cannot say anything about their actual nature. We move in space and time, but do not perceive them ourselves. Space and time shape our thinking, we cannot overcome them within our thinking. This makes it difficult to think about black holes.
But black holes are there, and for our thinking they fall into the ontological drawer of things we don't understand. Other things in this drawer are death, consciousness, spirituality. Black holes are similar to these things because they mark the limits of our imagination. However, they are also very different. We only know about black holes through science, outside of science we have no access to them. We only know death, consciousness and spirituality from our experience; science has little access to their essential qualities. Science's statements about death, consciousness and spirituality are unsatisfactory and reductionist.
Perhaps all 4, i.e. black holes, death, consciousness and spirituality, mark event horizons in different ways.
Speculation about other dimensions
I would like to speculate a little. If black holes are not part of our space-time, but are present in it at the same time, then perhaps they are part of another dimension. Perhaps there is an arrangement of black holes in another dimension that have an event character there. Perhaps our spacetime is just a property of another dimension.
In quantum mechanics, every atom 'knows' about the other atoms in the universe. The so-called interaction describes the phenomenon. If I change something in one place in the universe, the constellation of the universe as a whole is changed. This means that the information that something has changed is present at the other end of the universe, otherwise the laws of physics would be suspended. This complex information density is also annulled by black holes. What happens inside a black hole has no interaction with our space-time. Only the gravitational force of the black hole itself has an effect. Here, too, we quickly reach the limits of our imagination. Black holes also appear to be information holes.
But if our world is not primarily physical, but spiritual, how do black holes in the universe fit in? Do black holes also form spiritual holes?