I know things because people teach me. Just like other people know things because i teach them. I dont tell my math students to just read the damn book and figure it out themselves lol. Vast majority of people do not have the critical thinking or media literacy skills to properly research a topic let alone a plethora of them. If you dont wanna expend the energy to properly explain things thats fine, but telling people “just look it up yourself” helps no one
You can be blunt but dont be shocked if people think youre a cunt. Much like we expect neurotypicals to respect the differences in the way our brains work, so should we of them.