There are letters hidden throughout the site. Correspondence between Kronecker family members, tucked into corners, waiting to be found.

Not everything is meant to be found easily. Twelve letters are now scattered through the pages—messages between generations, confessions, warnings, love notes written in the margins of mathematical proofs. In this episode, we discuss why some truths hide, and why finding them matters.The letters are waiting. Will you search for them?"The letters are hidden at kronecker.rondanini.com. We won't tell you where. That's not how inheritance works."