January 19th, 2013
This is a map that takes some time to get your head around; quite literally, because to appreciate it fully, you need to consider it both with its north side and its south side up.
[…] There is no right side up – or rather: there is no wrong side up. For this is a planisphere palindrome, a planet-chart that can be 'read' the same way 'upside up' and upside down.
That Slartibartfast was a sneaky old bugger.