There is a famous question: why is the sky dark?
One can do a fairly simple analysis using scaling laws for volume vs. distance, combined with the inverse square law and the hypothesis that the distribution of stars within the universe is approximately uniform, to demonstrate that the sky should be light, not dark.
You are not by any means the only person who has questioned the nature of reality. I think that many cosmologists and astrophysicists do this also, and others as well.
Scaling laws and volume vs. distance work, but on such a cosmically unfathomable level they fall short, one small mistake can be millions of light years off target.
and “the hypothesis”
Not very confident that any astronomical estimations beyond our solar system are anything BUT arbitrary.