My question, "is everything in the universe discrete" was quite rapidly put on hold as a duplicate of "does the Planck scale imply that spacetime is discrete". I understand my question might have other issues as well, but it was closed for being a duplicate, so I would like to address that directly.
I edited the question and posted comments to explain why I don't think they are the same question, but I don't think anybody saw them. There was no discussion, no attention to the question; just closed, moved on, and forgotten.
My take on the situation is that my question is more general than the planck-scale question. The planck-scale is asking if spacetime specifically is discrete. And the questions and answers there are even more specific than that, they are talking about how the Planck scale is related to spacetime being discrete. My question is asking if everything in the universe is discrete, which is not equivalent, at least as much as I understand it. I did not find the answer to my question in the planck-scale question.
Is my question a duplicate? If yes, please help me to understand why, because I don't.