Time and Space Change Places in a Black Hole, But Why

If we managed to swap time and space, the whole Universe would turn into a chaotic collage of many historical events. Imagine drawing a light bulb on a sheet of paper.

Then grab one more sheet and draw how it lit up. Right now, it’s just a small circle of light. Another sheet — the circle of light is growing.

We see how over time, the light has grown from a small dot to a large circle, and it looks like a cone – a light cone. So, what will happen if this cone approaches a black hole?

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