User blog comment:Simply Beautiful Art/Recursively closing OCF/@comment-30118230-20180208230111/@comment-31663462-20180208231824

What do you mean by "make no [sense]"? Sure they do, and particularly $$\varepsilon_{\zeta_0+\varepsilon_{\zeta_0+\varepsilon_{\zeta_0}}}=\varepsilon_{\varepsilon_{\zeta_0\cdot2}}$$.