Hah. That's a good memory. An implementation (simulation?) of Langton's Ant was the first program I wrote when I was learning COBOL for my mainframe job at >BIG

Hah. That's a good memory. An implementation (simulation?) of Langton's Ant was the first program I wrote when I was learning COBOL for my mainframe job at >BIG FIN CORP< back in 2014. See, COBOL doesn't have a console, and there weren't any graphical capabilities to speak off on the system I worked on, so I just "animated" the simulation by producing multiple static screens. But it worked. I seem to have lost the source though, when I moved from that job.