Sunday 21.54. I've removed this post. It was meant as an amusing post-script to my earlier post on the Escher subject, getting a laugh at the expense of my own over-exuberence. In isolation, and out of that context, it of course was neither funny nor accurate. I have now removed the post.
I have tried to apologise to all commentators personally, but cannot find contact details for Jarno, Renoir1976, WyldRyce, or nemisonic. I hope they read this.