Here is a 2-hour slide presentation I made for college students and teens:
It's an introduction to realist thinking, a tour of all the good stuff people don't realize until they include a node for their brain's map in their brain's map. All the concepts come from Eliezer's posts on Overcoming Bias.
I presented this to my old youth group while staffing one of their events. In addition to the slide show, I had a browser with various optical illusions open in tabs, and I brought in a bunch of lemons and miracle fruit tablets. They had a good time and stayed engaged.
I hope the slides will be of use to others trying to promote the public understanding of rationality.
Note: When you view the presentation, make sure you can see the speaker notes. They capture the gist of what I was saying while I was showing each slide.
Added 6 years later: I finally made a video of myself presenting this, except this time it was an adult audience. See this discussion post.
Sure, why not? If there were no gas-producing bacteria living in our guts, we would not have such an appreciation of fart humor. Thus, the habits of some other organisms living inside us do have some effect on the contents of our experience.
If I was a brain in a vat, and had the same arrangement of neurons as I do now, I'd be just as appreciative of fart humor. I just wouldn't be able to fart. I might eventually lose interest because of that, but that's because my brain is changing.
Your body does influence you somewhat, especially the parts that secrete hormones, but then, everything that isn't your body does too.
It's not really obvious where "you" begins and ends, but we can at least say that it's mostly the brain.