A dream I once described here:
I dreamt that somebody came up with a symbol that would cause you to die if you looked at it. I’m not sure exactly what the symbol was, but it was an 8 by 8 grid of single-digit numbers and a few lines. (Matrix mathematicians beware!)The funny thing is this: Nobody believed it when told. They’d demand to see it, snatch it out of the person’s hands, and as they are collapsing to the ground loudly declare, “See, I told you so.”... their final words.