The suggestion that Palindromes may be enriched must be a traumatic statement to practitioners of that artful craft, so we will just say that possibly its image may be changed. We ourselves have labored at the making of Palindromes (often to bring forth a mouse) and are aware of the beauty and difficulty of them. We are not damning with faint praise.
"A Note on Catoptrons,"
Word Ways: Vol. 4
, Article 11.
Available at: https://digitalcommons.butler.edu/wordways/vol4/iss2/11