[Dee]

Here is another interesting search: is the Universe a fractal? If it is, maybe we can comprehend further than we can see, upscale or downscale.

My opinion is the universe isn't fractal indefinitely.
When it goes small to sizes like of electron, it's no longer particles, it's quantum (some amount of matter).
The same may go for the upper boundary, the universe is not a marble inside a cow stomach,
when we goes to the rim limit of the universe, we may switch to another parallel universe which is like a sibling of our one.