I agree with you that XKCD should be reserved for other forums; however, when it is done as well as this post I welcome it. This was an eye opening experience

I agree with you that XKCD should be reserved for other forums; however, when it is done as well as this post I welcome it. This was an eye opening experience that was not expected out of a comic and it taught me things in a very easy to understand mannor. I welcome any comics on HN that has this sort of wow factor.