A sonnet commenting on an article about repeated exponentiation.
Another reader, John Derbyshire (Huntington, NY) commented — in the form of a Petrarchan sonnet — on "The limit of x^x^ … ^x as x tends to zero," J. Marshall Ash, this magazine, No. 69 (June 96), as follows:

About John Derbyshire
John Derbyshire writes an incredible amount on all sorts of subjects for all kinds of outlets. (This no longer includes National Review, whose editors had some kind of tantrum and fired him. He is the author of We Are Doomed: Reclaiming Conservative Pessimism and several other books. His most recent book, published by VDARE.com com is FROM THE DISSIDENT RIGHT (also available in Kindle).His writings are archived at JohnDerbyshire.com.