Board Thread:Lore Discussion/@comment-5425132-20141223121751/@comment-17114085-20141223164724

And yet he wrote about time-travelling cyborg Pelinal...and the writing about the message sent to the past from the 5th Era....yeah...

MK's out-of-game writings are controversial because there are just some ridiculous things in them. While I do disregard most of his out-of-game writings as pure fan-fiction, unless Bethesda acknowledges them like they did with his writings about the many-headed Talos, then they aren't technically canon.

You should have the information in the German Wiki, but I think you should make note that it comes from an out-of-game source that may or may not be actual canon TES lore.