I have only skimmed this, but I link to it here in the hope that some of the readers of this blog will enjoy it. My interests and those of the author of this little dialog clearly overlap.
I include the above image only because Yudkowsky's dialog makes use of the venerable example of an uncomplicated truth, "snow is white."
The one bit that drew my attention was that where one character asks another "So it doesn't bother you that Josef Stalin believed that snow is white?" Love that. I'm sure he did. The stuff helped win him a war, he was probably happy to recall what it looked like.