Interesting project. I know for us geeks the short obscure commands are sometimes easier but something like this can ease people into using command line more.

I applaud the author because typically I don't have the courage to even attempt solving problems like this. And I wonder what the author is going to do about this.

Because well ... natural-language processing just isn't there yet, you can kind of "fake" it a bit by looking for keywords and patterns and regex but it only goes so far.

So beyond a certain point, you end up needing to solve the natural-language processing problem first, so that you can then build Betty.