This should enlighten you why: https://scottlocklin.wordpress.com/2015/12/15/an-introduction-to-kerf/ https://scottlocklin.wordpress.com/2015/12/15/an-introduct

This should enlighten you why: https://scottlocklin.wordpress.com/2015/12/15/an-introduction-to-kerf/ https://scottlocklin.wordpress.com/2015/12/15/an-introductio... Basically, he's big on Kerf because he's involved in the development. The above blog post will tie it with Kx and other APLs. https://getkerf.wordpress.com/ https://getkerf.wordpress.com/ is the official Kerf blog. And Kerf is not meant to be free...