More than just legend! Knuth wrote: >My last will and testament for TeX and METAFONT is that their version numbers ultimately become $\pi$ and $e$, respectivel

More than just legend! Knuth wrote: >My last will and testament for TeX and METAFONT is that their version numbers ultimately become $\pi$ and $e$, respectively. At that point they will be completely error-free by definition. https://www-cs-faculty.stanford.edu/~knuth/abcde.html https://www-cs-faculty.stanford.edu/~knuth/abcde.html