>>Edlin? ;-)
>>
>>>Glad you didn't ask which editor I use!
>>>
>>>>>>I guess you're a comedian too! <g>
>
>I used to work with a guy that wrote an entire geostatistical/mine modelling app in Fortran with Edlin. What a weird genius!

And I worked with one that did the entire operating system for a digital signal processor on a PDP-11 in TECO. I don't know if it was genius, but what talent.