How r u all so smart

I scroll this sub and I see everyone talking about crazy concepts and ideas and world issues and art and big words and just everything. This is a very unique sub filled with everything, my question is how can I be smart like you guys what should I read or indulge in or watch some tell me I want to sound like you guys. Just saw someone use the word pragmatic I had to look it up, I don’t want to be dumb.