argue against full stack, 认为一个人不可能expert on front end and backend
但同时又argue for所谓的math。。。 说什么spark就需要high math skills。。。 这
不就是说, 一个人是fullstack, not in terms of front end and back end, but
in terms of backend and data science/ML...
好像expert on front/backend要比 expert on backend/ML要容易吧。。。