I was not aware of Brandon Sanderson, nor have I heard the term Ketek before. I am intrigued, you mean the poem is still a three liner, yet every line has the same number of syllables, right? I admit to being fond of complexity and I wonder which form can be perceived as more complex out of the two. Or are they but two facets of the same prism? Jack in the box can be a lot of fun if you get to come out when least predictable. Ha. Still, humor aside, I might look up further into Sanderson, I am, at the risk of repeating myself, quite intrigued. I appreciate that you took time to express more than formal politeness in your comment and brought something unexpected to the table. Thank you for this and for sharing the information on Ketek. Cheers