Have you also read Bostrom's paper? (I would now point out the example of spoilers for fiction works, but then you might reply by pointing out the study finding that spoilers make fiction works more enjoyable for the average person. OTOH, not all people are average.)
What are your best short witticisms, suitable for use on a t-shirt, bumper sticker, or similar location? Ideally something that might make someone reading it think, or get curious enough to ask about it. Simple in-group identification is fine too, though.
For context, therufs is spending today at the NC Maker Faire making t-shirts, and asked me for suggestions this morning. As I was still mostly asleep, I wasn't very helpful.