Agreed. As a Ruby/JS programmer I absolutely do not think that JS or Ruby folks can't do hard CS stuff, just that it's really easy to be a commercially successf

Agreed. As a Ruby/JS programmer I absolutely do not think that JS or Ruby folks can't do hard CS stuff, just that it's really easy to be a commercially successful Ruby or JS programmer and not have any idea what a hash algorithm is. Or know anything about bloom filters. The problem domain often doesn't expose you to that, and that's unfortunate. There's a lot of research over the last 60 years in CS that can make our lives much easier (obviously lots of research is ongoing, too).