@user105595 thank you so much. This is what I'm looking for

For affiliation, after I graduated undergrad, I spend some years to look for my interested fields (I had a vague idea of what I like back then, but didn't know what it's called), and fill relevant knowledge. Therefore I don't have one now.

I will remove the reddit link.

I'm also in the process of submitting it to a journal, but I still want to have feedback on it. It's likely that they will reject it for not being a full paper, but because this is just my observations and I just want to present the ideas

I think that if my research matches his, then the non-peer-reviewed issue is not important?

I guess he know what double negation means? It's not an esoteric word

When you reply please remember to tag me, or I won't receive notification. Thanks.