Detanico and Lain explore irreversibility through art, language, perspective, and play. Inspired by Einstein’s “block universe,” they reflect on time as illusion. Palindromes, frequencies, Duchamp’s shattered glass, and the reversed chess game “SSEHC” illustrate how reversal sparks creativity. Reversibility is not return but a shift in perspective—a game of rules that opens new forms of knowledge and experience.