> but after watching a hundred or so Numberphile videos on YT, many on the cosmos and nuclear physics, I can see myself making similar statements in the future ;)

I read this as

> I watched a bunch of high level YouTube videos and now I'm an expert on quantum mechanics and nuclear physics.

It is okay, you don't have to be an expert in everything. It is okay to not know. It is okay to be wrong. But please don't act like you know what you're an expert when you haven't done the perquisites. We're not in high school anymore, you can't write the book report without reading the book.