I wish I was smart enough to understand anything being said here.
Some of this stuff is hard,and you're not expected to understand it without work. So don't just flip it off and say "I'm not smart enough" ... recognise that with work you can understand it, and if you choose not to put in the effort, that's your choice.
There's a lot in this world that takes time to work on, and time to come up to speed with. If you have seventeen lifetimes then you can do a lot, but otherwise you need to make choices. There's a lot you can appreciate from the sidelines, and agree is amazing, without necessarily understanding it all.
But other things you will want to get stuck into and get your hands dirty with, and it takes time and effort.
Smart isn't where it's at ... persistence and resilience are the critical components, combined with a desire to make progress. Absolutely you can look at something and choose not to engage with it, but if you're interested,have a go! Be methodical, be persistent, read around, ask questions, and go for it.
By the way ... I certainly don't know everything ... far from it ... very, very far from it, but if ever there's something you think I might be able to help with, just let me know. If I can't help, I'll say so. If I can, I'd be happy to do so.