I think those kinds of articles are really unfair. Yes, Erlaing is 500 line for code -- but this includes text parsed and I/O, main loop, nice descriptive name

I think those kinds of articles are really unfair. Yes, Erlaing is 500 line for code -- but this includes text parsed and I/O, main loop, nice descriptive names, good test suite. The "shorter" APL version has none of this, it is just the main function. Rewrite APL version to add I/O, text parsing and unit tests; rewrite erlang version to get rid of all the descriptive names and extra whitespace -- and then you can have a fair comparison.