How Do I Speak to the Los Common Denominator?

The majority of mankind is stuck in profound ignorance. When i speak as though everybody who's watching me is ignorant, that does a disservice to those f you who are very intelligent. If i assume that some 18-year-old moron is listening to what i'm saying about psychodelics, then i have to issue a lot more warnings for the things that i say. And part of the problem is that, honestly, i don't know the full breakdown of the intelligence of my audience. Some of my audience is very, very intelligent, some is not. So when you hae a very diverse audience, it's hard to figure out how to speak to all of them