> Dynamic languages such as PHP, JS, Python and Ruby Don't forget the other dynamic language frequently mentioned in the article... PHP: Rasmus Lerdorf gradua

> Dynamic languages such as PHP, JS, Python and Ruby Don't forget the other dynamic language frequently mentioned in the article... PHP: Rasmus Lerdorf graduated in 1993 from the University of Waterloo with a Bachelor of Applied Science in Systems Design Engineering. But perhaps the author's definition of "mainstream" includes languages of Groovy's degree of adoption.